© Semiconductor Components Industries, LLC, 2015
March, 2017 − Rev. 3 1Publication Order Number:
KLI−8023/D
KLI-8023
Linear CCD Image Sensor
Description
The KLI−8023 Image Sensor is a multispectral, linear solid state
image sensor for color scanning applications where ultra-high
resolution is required.
The imager consists of three parallel linear photodiode arrays, each
with 8,000 active photosites for the output of red, green, and blue
(R, G, B) signals. This device offers high sensitivity, high data rates,
low noise and negligible lag. Individual electronic exposure control
for each color allows the KLI−8023 sensor to be used under a variety
of illumination conditions. The imager can be operated in an Extended
Dynamic Range mode for the most demanding applications.
Table 1. GENERAL SPECIFICATIONS
Parameter Typical Value
Architecture 3 Channel, RGB Trilinear CCD
Pixel Count 8002 × 3
Pixel Size 9 mm (H) × 9 mm (V)
Pixel Pitch 9 mm
Inter-Array Spacing 108 mm (12 Lines Effective)
Imager Size 72.0 mm (H) × 0.225 mm (V)
Saturation Signal 185 ke (Normal DR Mode)
400 ke (Extended DR Mode)
Dynamic Range
(2 MHz Data Rate) 84 dB (Normal DR Mode)
90 dB (Extended DR Mode)
Responsivity
R, G, B (−RAA)
R, G, B (−DAA)
Mono (−AAA, −SAA, −MAA)
32, 20, 20 V/mJ/cm2
29, 19, 18 V/mJ/cm2
33 V/mJ/cm2
Output Sensitivity 14.4 mV/e
Dark Current 0.002 pA/Pixel
Dark Current Doubling Rate 8°C
Charge Transfer Efficiency 0.999998/Transfer
Photoresponse Non-Uniformity 3% Peak-Peak
Lag (First Field) 0.025%
Maximum Data Rate 6 MHz/Channel
Package CERDIP (Sidebrazed, CuW)
Cover Glass AR Coated, 2 Sides
NOTE: Parameters above are specified at T = 25°C (junction temperature)
and 1 MHz clock rates unless otherwise noted.
Features
12 Line Spacing between Color Channels
Single Shift Register per Channel
High Off-Band Spectral Rejection
Dark Reference Pixels Provided
Anti-Reflective Glass
Wide Dynamic Range, Low Noise
Dual Dynamic Range Mode Operation
No Image Lag
Electronic Exposure Control
High Charge Transfer Efficiency
Two-Phase Register Clocking
74 ACT Logic Compatible Clocks
6 MHz Maximum Data Rate
Applications
Digitization
Medical Imaging
Photography
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Figure 1. KLI−8023 Linear CCD
Image Sensor
See detailed ordering and shipping information on page 2 o
f
this data sheet.
ORDERING INFORMATION
KLI−8023
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2
ORDERING INFORMATION
Table 2. ORDERING INFORMATION − KLI−8023 IMAGE SENSOR
Part Number Description Marking Code
KLI−8023−AAA−ED−AA Monochrome, No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Standard Grade KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−AAA−ED−AE Monochrome, No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Engineering Sample
KLI−8023−AAA−ER−AA Monochrome, No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Standard Grade KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−AAA−ER−AE Monochrome, No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Engineering Sample
KLI−8023−RAA−ED−AA Gen2 Color (RGB), No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Standard Grade KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−RAA−ED−AE Gen2 Color (RGB), No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Engineering Sample
KLI−8023−SAA−ED−AA Monochrome with RB Surround – Gen2, No Microlens, CERDIP Package
(Leadframe), Clear Cover Glass with AR Coating (Both Sides), Standard
Grade
KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−SAA−ED−AE Monochrome with RB Surround – Gen2, No Microlens, CERDIP Package
(Leadframe), Clear Cover Glass with AR Coating (Both Sides), Engineering
Sample
KLI−8023−MAA−ED−AA* Monochrome with RB Surround – Gen1, No Microlens, CERDIP Package
(Leadframe), Clear Cover Glass with AR Coating (Both Sides), Standard
Grade
KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−MAA−ED−AE* Monochrome with RB Surround – Gen1, No Microlens, CERDIP Package
(Leadframe), Clear Cover Glass with AR Coating (Both Sides), Engineering
Sample
KLI−8023−DAA−ED−AA* Gen1 Color (RGB), No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Standard Grade KLI−8023 (Lot Code)
(Serial Number)
KLI−8023−DAA−ED−AE* Gen1 Color (RGB), No Microlens, CERDIP Package (Leadframe),
Clear Cover Glass with AR Coating (Both Sides), Engineering Sample
*Not recommended for new designs.
Table 3. ORDERING INFORMATION − EVALUATION SUPPORT
Part Number Description
KLI−8023−12−5−A−EVK Evaluation Board (Complete Kit)
See the ON Semiconductor Device Nomenclature document (TND310/D) for a full description of the naming convention
used for image sensors. For reference documentation, including information on evaluation kits, please visit our web site at
www.onsemi.com.
KLI−8023
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DEVICE DESCRIPTION
Figure 2. Single Channel Schematic
ID
OG
SUB
VDD
VIDn
VSSn
RD
fR
6 Blank
CCD Cells
IG
6 Blank
CCD Cells
8002 Active Pixels14 Test 16 Dark
TG2
TG1
LOGn
LS
Photodiode Array
FD
f2B
Dark Reference Pixels
Dark reference pixels are groups of photosensitive pixels
covered by a metal light shield. These pixels are used as
a black level reference for the image sensor output. Since the
incident light is blocked from entering these pixels,
the signal contained in these pixels is due only to dark
current. It is assumed that each photosensitive pixel (active
and dark reference) will have approximately the same dark
signal; thus, subtracting the average dark reference signal
from each active pixel signal will remove the background
dark signal level. Dark reference pixels are typically located
at one or both ends of the arrays, as shown earlier in this
document for a linear image sensor in the single channel
schematic.
Dynamic Range
Dynamic Range (DR) is the ratio of the maximum output
signal, or saturation level, of an image sensor to the dark
noise level of the imager. The dark noise level, or noise floor
of an imager is typically expressed as the root mean square
(rms) variation in dark signal voltage. The dark signal
includes components from dark current within the photosite
and CCD regions, reset transistor and output amplifier noise,
and input clocking noise. An input referred noise signal in
the charge domain can be calculated by dividing the dark
noise voltage by the imager charge-to-voltage conversion
factor. The dynamic range is typically expressed in units of
decibels as: DR = 20 LOG (NSAT / Noise).
High Dynamic Range Mode (DR)
Two modes of device operation can be realized,
the ‘normal mode’ and ‘high dynamic range mode’. In
‘the normal mode’ of operation, clocking of the output
structure reset gate (PHIR, pin 12) remains similar to all
other clocks at 6.25 Vp-p. The usable saturation exposure in
this mode is approximately 180,000 electrons, yielding
a saturation voltage of 2.5 volts. In the ‘high dynamic range’
mode, the reset gate clocking is increased to 12 Vp-p and the
reset drain bias (RD, pin 29) is increased to the upper
amplifier supply voltage (VDD, pin 26). The usable
saturation exposure in this mode increases to 400,000 e
with a saturation voltage in excess of 5 volts.
Image Acquisition
During the integration period, an image is obtained by
gathering electrons generated by photons incident upon the
photodiodes. The charge collected in the photodiode array
is a linear function of the local exposure. The char ge is stored
in the photodiode itself and is isolated from the CCD shift
registers during the integration period by the transfer gates
TG1 and TG2, which are held at barrier potentials. At the
end of the integration period, the CCD register clocking is
stopped with the f1 and f2 gates being held in a ‘high’ and
‘low’ state respectively. Next, the TG gates are turned ‘on’
causing the charge to drain from the photodiode into the TG1
storage region. As TG1 is turned back ‘off’ charge is
transferred through TG2 and into the f1 storage region.
The TG2 gate is then turned ‘off, isolating the shift registers
from the accumulation region once again. Complementary
clocking of the f1 and f2 phases now resumes for readout
of the current line of data while the next line of data is
integrated.
Charge Transport
Readout of the signal charge is accomplished by
two-phase, complementary clocking of the f1 and f2 gates.
The register architecture has been designed for high speed
clocking with minimal transport and output signal
degradation, while still maintaining low (6.25 Vp-p min)
clock swings for reduced power dissipation, lower clock
noise and simpler driver design. The data in all registers is
clocked simultaneously toward the output structures.
The signal is then transferred to the output structures in
a parallel format at the falling edge of the f2 clocks.
Re-settable floating diffusions are used for the
charge-to-voltage conversion while source followers
provide buffering to external connections. The potential
change on the floating diffusion is dependent on the amount
of signal charge and is given by DVFD = DQ/C
FD, where
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DVFD is the change in potential of the floating diffusion, DQ
is the amount of charge deposited on the floating diffusion,
and CFD is the floating diffusion capacitance. Prior to each
pixel output, the floating dif fusion is returned to the RD level
by the reset clock, fR.
Charge Transfer Efficiency
Charge Transfer Efficiency (CTE) is a measure of how
efficiently electronic char ge can be transported by a Charge
Coupled Device (CCD). This parameter is especially
important in linear imager technology due to the fact that
CCDs are often required to transport charge packets over
long distances at very high speeds. The result of poor CTE
is to reduce the overall MTF of the line image in a nonlinear
fashion: the portion of the line image at the far end of the
CCD will be degraded more than the image at the output end
of the CCD, since it will under go more CCD transfers. There
are many possible mechanisms that can negatively influence
the CTE. Amongst these mechanisms are included
excessive CCD clocking frequency, insufficient drive
potential on the CCD clocking gates, and incorrect voltage
bias on the output gate (OG signal). The effect of these
mechanisms is that some charge is “left behind” during
a CCD transfer clocking cycle. Depending on the limiting
mechanism, the lost charge could be added to the immediate
trailing cell or to a cell further back in time; thus, causing
a horizontal smearing of the line image.
The charge lost from a CCD cell, after being transferred
out of the CCD, is measured with respect to the original
charge level and is termed the charge transfer inefficiency
(CTI). CTI is defined as:
CTI +ǒTotal Charge Lost
Initial Charge Ǔ@ǒ1
Number of TransfersǓ
The efficiency of the CCD transfer (CTE) is then defined
as simply:
CTE +1*CTI
Note that the total transfer efficiency for the entire line
(TTE) is equal to (CTE)N, where N is the total number of
transfers which is equal to the number of phases per cell,
times the number of cells (n).
TTE +CTE @2@8022
Dark Signal Evaluation
The dark signal evaluation measures the thermally
generated electronic current (i.e. background noise signal)
at a specific operating temperature. Dark current is
measured will all incident radiation removed (i.e. imager is
in the dark). The current measured by the picoammeter is the
dark current of the photodiode array plus the dark current of
the CCD array. Multiplying the dark current by the total
integration time yields the quantity of dark charge. And
dividing the dark current by the number of photodiodes
yields the dark current per photodiode (IDark). Dark voltage
increases linearly with integration time, the worst-case
value occurs at the slowest clocking frequency.
Additionally, dark current doubles for approximately every
8°C increase in temperature.
Fixed Pattern Noise
If the output of an image sensor under no illumination is
viewed at high gain, a distinct non-uniform pattern or fixed
pattern noise can be seen. This fixed pattern can be removed
from the video by subtracting the dark value of each pixel
from the pixel values read out in all subsequent frames. Dark
fixed pattern noise is usually caused by variations in dark
current across an imager, but can also be caused by input
clocking signals abruptly starting or stopping, or by having
the CCD clocks not being close compliments of each other.
Mismatched CCD clocks can result in high instantaneous
substrate currents, which when combined with the fact that
the silicon substrate has some non-zero resistance, can result
in the substrate potential bouncing. The pattern noise can
also be seen when the imager is under uniform illumination.
An imager that exhibits a fixed pattern noise under uniform
illumination and shows no pattern in the dark is said to have
light pattern noise or photosensitivity pattern noise. In
addition to the reasons mentioned above, light pattern noise
can be caused by the imager entering saturation,
the nonuniform clipping effect of the anti-blooming circuit,
and by non-uniform photosensitive pixel areas often caused
by debris covering portions of some pixels.
Exposure Control
Exposure control is implemented by selectively clocking
the LOG gates during portions of the scanning line time. By
applying a large enough positive bias to the LOG gate, the
channel potential is increased to a level beyond the ‘pinning
level’ of the photodiode. (The ‘pinning’ level is the
maximum channel potential that the photodiode can achieve
and is fixed by the doping levels of the structure.) With TG1
in an ‘off’ state and LOG strongly biased, all of the
photocurrent will be drawn off to the LS drain. Referring to
the timing diagrams in Figure 12 and Figure 13, one notes
that the exposure can be controlled by pulsing the LOG gate
to a ‘high’ level while TG1 is turning ‘off’ and then
returning the LOG gate to a ‘low’ bias level sometime during
the line scan. The effective exposure (tEXP) is the net time
between the falling edge of the LOG gate and the falling
edge of the TG1 gate (end of the line). Separate LOG
connections for each channel are provided, enabling on-chip
light source and image spectral color balancing. As
a cautionary note, the switching transients of the LOG gates
during line readout may inject an artifact at the sensor
output. Rising edge artifacts can be avoided by switching
LOG during the photodiode-to-CCD transfer period,
preferably during the TG1 falling edge. Depending on
clocking speeds, the falling edge of the LOG should be
synchronous with the f1/f2 shift register readout clocks.
For very fast applications, the falling edge of the LOG gate
may be limited by on-chip RC delays across the array. In this
case artifacts may extend across one or more pixels.
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Correlated double sampling (CDS) processing of the output
waveform can remove the first order magnitude of such
artifacts. In high dynamic range applications, it may be
advisable t o limit the LOG fall times to minimize the current
transients in the device substrate and limit the magnitude of
the artifact to an acceptable level.
Lag
Lag, or decay lag is a measure of the amount of
photogenerated charge left behind during
a photodiode-to-CCD transfer cycle. Ideally, no charge is
left behind during such transfers and lag is equal to zero; that
is, 100% of the collected photogenerated charge is
transferred to the adjacent CCD. The use of “pinned”
photodiode technology enables the linear imagers to achieve
near perfect lag performance. Improper T ransfer Gate (TG)
clocking levels can introduce a lag type response. Thus, care
must be taken to ensure that the clocking levels are not
limiting the lag performance.
Imager Responsivity
Responsivity is a measure of the imager output when
exposed to a given optical ener gy density. It is measured on
monochrome and color (if applicable) versions of an imager
over the entire wavelength range of operation. Imagers
having multiple photodiode arrays with differing color
filters and/or photodiode dimensions have responsivity
measured o n each array. Responsivity is reported in units of:
V
mJńcm2
Linearity
The non-linearity of an image sensor is typically defined
as the percent deviation from the ideal linear response,
which is defined by the line passing through VSAT and
VDARK. The percent linearity is then 100 minus the
non-linearity. The output linearity of a solid-state image
sensor is determined from the linearity of the photon
collection process, the electron exposure structure
non-linearities (if any exists), the efficiency of charge
transportation from the photosite to the output amplifier , and
the output amplifier linearity. The absorption of photons
within the silicon substrate can be considered an ideal linear
function of incident illumination level when averaged over
a given period of time. The existence of an electronic
exposure control circuit adjacent to the photosensitive sites
can introduce a non-linearity into the overall response by
allowing small quantities of charge to remain isolated in
unwanted potential wells. Whether or not any potential wells
exist depends on the design and manufacturing of the
particular image sensor. The existence of such potential
wells in the exposure circuitry, also called exposure control
defects, will degrade the linearity only at small signal levels
and may be different from one photosite to the next.
An image sensor with excessive exposure control defects
would be rejected during quality assurance testing. The loss
of charge during the transportation of charge packets from
the photosite to the CCD, which is termed lag, tends to af fect
the linearity only at very small signal levels. “Pinned”
photodiodes, or buried photodiodes, have extremely small
lag (< 0.5%), and can be considered to be lag free. The CCD
charge transfer inefficiency (CTI) will reduce the amplitude
of the charge packet as it is transported towards the output
amplifier, with the greatest effect realized at very small
signal levels. Modern CCD’s have CTE in excess of
0.999999 per CCD transfer; thus, the overall effect on
linearity is generally not a concern. If biased properly, the
output amplifier will yield a non-linearity of typically less
than 2%. Non linearity at signal levels beyond the saturation
level is expected and can often vary significantly from pixel
to pixel.
Linearity Evaluation
Ideally, the output video amplitude should vary linearly
with incident light intensity over the entire input range of
irradiance. There are many possible phenomena that can
cause non-linearity in the response curve; inadequate CTE
and improper biasing or clocking to name a few.
Electronic exposure control could be used to vary the
photodiode integration time; however, since electronic
exposure control can introduce non-linearity, it is not
recommended as a method of limiting the input signal.
The output signal versus relative irradiance is graphed and
a least squares, linear regression fit to the data is performed.
The best fit data curve should pass through zero volts and
remain linear (R2 > 0.99) up to the VSAT level.
Modulation Transfer Function (MTF)
MTF is the magnitude of the spatial frequency response of
a solid-state imager. The three main components of imager
MTF are termed the aperture MTF, diffusion MTF, and
charge transfer efficiency MTF. The aperture MTF results
from the discrete sampling nature of solid-state imagers,
with smaller pixel pitches yielding a better high frequency
MTF response. The diffusion of photogenerated charge
degrades the imager response and is responsible for the
second component. The third component is due to inefficient
charge transfer in the shift register. The maximum spatial
frequency an imager can detect without aliasing occurring
is defined as the Nyquist frequency and is equal to the
inverse of two times the pixel pitch. MTF is typically
reported at the Nyquist frequency, 1/2 Nyquist, and 1/4
Nyquist. The aperture MTF limits the maximum response at
Nyquist to 0.637. (Note that the maximum MTF response is
1.0). The diffusion component will further degrade this
value, especially at longer optical wavelengths.
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Noise
Noise is defined as any unwanted signal added to the
imager output. Temporal noise sources present in a typical
imager include the dark current, photon shot noise, reset
transistor noise, CCD clocking noise, and the output
amplifier noise. Dark current is dependent on the imager
operating temperature and can be reduced by cooling the
imager. The reset transistor noise can be removed using
correlated double sampling signal processing. The photon
shot noise cannot be eliminated; however, by acquiring and
averaging several frames it, and all temporal noise sources,
can be reduced. Another source of noise is the variation in
dark current from pixel to pixel leads to a dark noise pattern
across an imager. The effects of this dark pattern noise can
also be minimized by averaging several frames and then
using the pixel-referenced, dark frame data as the zero
reference level for each pixel.
Noise Evaluation
The noise evaluation measures the noise levels associated
with operating the imager at the specified clocking speeds
and temperatures. The test is performed with imager
temperature held stable and all incident light removed.
The noise contributions of the evaluation circuitry also need
to be removed from the calculation. Once this is done, the
total imager noise will be approximately equal to the sum o f
squares of each of the CCD clocking noise, output amplifier
noise, and the dark current noise.
Photodiode Quantum Efficiency
For a given area, absolute quantum efficiency is defined
as the ratio of the number of photogenerated electrons
captured during an integration period to the number of
impinging photons during that period. Higher values
indicate a more efficient photon conversion process and
hence are more desirable.
Absolute photodiode quantum efficiency is calculated
from the charge-to-voltage, imager responsivity, and
measured active photodiode area. It is calculated over the
entire wavelength range of operation and graphed on a curve
as percent Quantum Efficiency versus Wavelength.
Once the charge-to-voltage, responsivity, and active
photodiode dimensions have all been measured, the absolute
quantum efficiency can be calculated as:
Quantum Efficiency (l)+Responsivity (l)B
BActive Photodiode Area
BCharge to Voltage B
Energy per Photon (l)
where
Energy per Photon (l)+h@c
l
and
h@c+1.98647E *25 [J *m]
Care should be taken to ensure that all quantities are
represented in similar units before any calculations are
performed. Using the above formulas, the absolute quantum
efficiency can be expressed as:
QE(l)+100% @R(l)BdV
dNeBAreaDiode @h@c
l
Photoresponse Non-Uniformity (PRNU)
The PRNU measurement is taken in a flat field of
collimated white light. The intensity of the light is set to
a value approximately 10% to 20% below the saturated
signal level. One region (or “window”) of pixels is observed
for uniformity at a given time, and the average response is
calculated for each non-overlapping windowed section. In
the case of medium or low frequency PRNU measurements,
a medium filter of 3−7 pixels is applied to this region to
eliminate the ef fects of single point defects. The maximum
and minimum pixel is determined for each windowed
section. Again, for each section, the following formula is
applied:
PRNU +100% @ǒMax_Pixel_Value *Min_Pixel_Value
Mean_Pixel_Value Ǔ
Each section is then compared against the specification to
identify the region with the largest percent deviation from
the average response for the imager.
Resolution
The resolution of a solid-state image sensor is the spatial
resolving power of that sensor. The spatial resolution
of a sensor is descried in the spatial frequency domain by th e
modulation transfer function (MTF). The discrete sampling
nature of solid-state image sensors gives rise to
a sampling frequency that will determine the upper limit of
the sensors frequency response. Resolution is
frequently described in terms of the number of dots or
photosites per inch (DPI) in the imager or object planes.
For example, a linear image sensor with a single array of
1,000 photosites of pitch 10 mm would have a resolution of
2,540 DPI (1,000 / (1,000 0.01 mm 1/25.4 mm)). If the
sensor were used in an optical system to image an 8 wide
document, then the resolution in the document plane would
be 125 DPI (1,000 pixels / 8). This example is slightly
misleading in that it does not consider the frequency
response o f the sensor or the optics. In reality, the sensor will
have an MTF of between 0.2 and 0.7 at the Nyquist spatial
frequency and the optics are likely to have an
MTF of 0.6 to 0.9 at the Nyquist frequency. It is important
to note that even though a sensor may have a high
enough sampling frequency for a particular application, the
overall frequency response of the sensor and optics may not
be sufficient for that application!
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Saturation Voltage
The saturated signal level is the output voltage
corresponding to the maximum charge packet the imager
can handle. Adding charge above the saturated level results
in the excess charge “spilling” over into neighboring
photosites or CCD structures. Either the photodiode
capacity or the CCD capacity, with the latter being the most
typical case, can limit the charge capacity. The saturated
signal level is measured by monitoring the dark-to-light
transition between the first-out dark reference pixels and the
first active pixels while the irradiance is slowly increased.
Note that improper settings on either the output gate (OG)
or the reset gate (fR) can have a clipping effect on the output
waveform.
Smear
Smear, also referred to as Photodiode-to-CCD Crosstalk,
occurs when photogenerated charge diffuses to an adjacent
CCD (such as a transfer register) and is collected, as opposed
to being collected in the photodiode where the photon
absorption occurred. The result of smear is to increase the
background signal within the dark reference pixels and CCD
buffer pixels. This increased background signal reduces the
achievable dynamic range; hence, a high smear value is
undesirable. The further the photodiode array and the CCD
are apart, the less the smear. Contributors to increased smear
are a short photodiode-to-CCD separation and improper
transfer gate clocking levels or timing. Smear is also highly
dependent on incident photon wavelength. In the
application, an I R cut-off filter (~710 nm) is recommended.
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Physical Description
Pin Description and Device Orientation
Figure 3. KLI−8023 Pinout
140SUB SUB
239
f2A f1A
338SUB SUB
437SUB N/C
536SUB IG
635LOGG ID
734LOGB LOGR
833LS SUB
932TG2 TG1
10 31SUB SUB
11 30SUB SUB
12 29
fRRD
13 28VSSB OG
14 27VIDB SUB
15 26SUB VDD
16 25VIDG VIDR
17 24VSSG VSSR
18 23SUB SUB
19 22
f1B f2B
20 21SUB SUB
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Table 4. PACKAGE PIN DESCRIPTION
Pin Name Description
1 SUB Substrate/Ground
2f2n Phase 2 CCD Clock (n = A or B)
3 SUB Substrate/Ground
4 SUB Substrate/Ground
5 SUB Substrate/Ground
6 LOGn Exposure Control for Channel (n = R, G, B)
7 LOGn Exposure Control for Channel (n = R, G, B)
8 LS Light Shield/Exposure Drain
9 TG2 Transfer Gate 2 Clock
10 SUB Substrate/Ground
11 SUB Substrate/Ground
12 fRReset Clock
13 VSSn Ground Reference (n = R, G, B)
14 VIDn Blue Output Video (n = R, G, B)
15 SUB Substrate/Ground
16 VIDn Blue Output Video (n = R, G, B)
17 VSSn Ground Reference (n = R, G, B)
18 SUB Substrate/Ground
19 f1n Phase 1 CCD Clock (n = A or b)
20 SUB Substrate/Ground
21 SUB Substrate/Ground
22 f2n Phase 2 CCD Clock (n = A or B)
23 SUB Substrate/Ground
24 VSSn Ground Reference (n = R, G, B)
25 VIDn Blue Output Video (n = R, G, B)
26 VDD Amplifier Supply
27 SUB Substrate/Ground
28 OG Output Gate
29 RD Reset Drain
30 SUB Substrate/Ground
31 SUB Substrate/Ground
32 TG1 Transfer Gate 1
33 SUB Substrate/Ground
34 LOGn Exposure Control for Channel (n = R, G, B)
35 ID Test Input − Input Diode
36 IG Test Input − Input Gate
37 SUB Substrate/Ground
38 SUB Substrate/Ground
39 f1n Phase 1 CCD Clock (n = A or B)
40 SUB Substrate/Ground
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IMAGING PERFORMANCE
Typical Operational Conditions
Specifications given under nominally specified operating
conditions for the given mode of operation at 25°C,
fCLK = 1 MHz, AR coverglass, color filters, and an active
load as shown in Figure 4 unless otherwise specified. See
notes on next page for further descriptions.
Table 5. SPECIFICATIONS
Description Symbol Min. Nom. Max. Units Notes Verification
Plan
HIGH DYNAMIC RANGE MODE (VRD = 15 V, fR (High) = 12 V)
Saturation Output Voltage VSAT 5.2 5.5 Vp-p 1, 9 Die17
Output Sensitivity DVO/DNe 14 mV/eDesign18
Saturation Signal Charge Ne,SAT 400 keDesign18
Dynamic Range DR 87 dB 3 Design18
Dark Signal Non-Uniformity DSNU 0.006 0.02 V Design18
DC Gain, Amplifier ADC 0.725 0.775 0.825 Design18
Dark Current IDARK 0.003 0.005 pA/pixel Design18
Charge Transfer Efficiency CTE, η0.999995 5 die17
Lag L 0.003 0.06 % Design18
DC Output Offset VO,DC 811 13 V 9 Design18
Darkfield Defect, Brightpoint Dark Def 0 Allowed 12 Die17
Brightfield Defect, Dark or Bright Bfld Def 0 Allowed 13 Die17
Exposure Control Defects Exp Def 32 Allowed 11, 14,
15, 16 Die17
NORMAL MODE (VRD = 11 V, fR (High) = 6.5 V)
Saturation Output Voltage VSAT 2.3 2.6 Vp-p 1, 9 Design18
Saturation Signal Charge NSAT 200 keDesign18
Dynamic Range DR 78 82 dB 3 Design18
DC Output Offset VODC 5.5 7.75 10 V 9 Design18
KLI−8023−RAA CONFIGURATION GEN2 COLOR
Responsivity
Red
Green
Blue
RMAX
29
19
18
V/mJ/cm2Design18
Peak Responsivity Wavelength
Red
Green
Blue
lR
650
540
460
nm Design18
Photoresponse Uniformity,
Low Frequency PRNU.
Low 5 10 %p-p Die17
Photoresponse Uniformity,
Medium Frequency PRNU.
Medium 5 10 %p-p Die17
KLI−8023
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11
Table 5. SPECIFICATIONS (continued)
Description Verification
Plan
NotesUnitsMax.Nom.Min.Symbol
KLI−8023−DAA CONFIGURATION GEN1 COLOR (Note 19)
Responsivity
Red
Green
Blue
RMAX
32
20
20
V/mJ/cm2Design18
Responsivity Wavelength
Red
Green
Blue
lR
650
540
460
nm Design18
Photoresponse Uniformity,
Low Frequency PRNU.
Low 4 7 %p-p Die17
Photoresponse Uniformity,
Medium Frequency PRNU.
Medium 4 7 %p-p Die17
KLI−8023−AAA, KLI−8023−SAA, AND KLI−8023−MAA CONFIGURATION MONOCHROME (Note 19)
Responsivity
Monochrome RMAX 33 V/mJ/cm2Design18
Responsivity Wavelength
Monochrome lR 675 nm Design18
Photoresponse Uniformity,
Low Frequency PRNU.
Low 4 7 %p-p Die17
Photoresponse Uniformity,
Medium Frequency PRNU.
Medium 4 7 %p-p Die17
1. Defined as the maximum output level achievable before linearity or PRNU performance is degraded beyond specification.
2. With color filter. Values specified at filter peaks. 50% bandwidth = ±30 nm. Color filter arrays become transparent after 710 nm. It is
recommended that a suitable IR cut filter be used to maintain spectral balance and optimal MTF. See Figure 5.
3. As measured at 2 MHz data rate. This device utilizes 2-phase clocking for cancellation of driver displacement currents. Symmetry between
f1 and f2 phases must be maintained to minimize clock noise.
4. Dark current doubles approximately every +8°C.
5. Measured per transfer. For the total line: (0.999995) 16044 = 0.9229.
6. Low frequency response is measured across the entire array with a 1,000 pixel-moving window and a 5 pixel median filter evaluated under
a flat field illumination.
7. Medium frequency response is measured across the entire array with a 50 pixel-moving window and a 5 pixel median filter evaluated under
a flat field illumination.
8. High frequency response non-uniformity represents individual pixel defects evaluated under a flat field illumination. An individual pixel value
may deviate above or below the average response for the entire array. Zero individual defects allowed per this specification.
9. Increasing the current load (nominally 4 mA) to improve signal bandwidth will decrease these parameters.
10.If resistive loads are used to set current, the amplifier gain will be reduced, thereby reducing the output sensitivity and net responsivity.
(e.g. with 2.2 kW loads to ground, the sensitivity drops to 12.5 mV per electron).
11.Defective pixels will be separated by at least one non-defective pixel within and across channels.
12.Pixels whose response is greater than the average response by the specified threshold, (16 mV). See Figure 4.
13.Pixels whose response is greater or less than the average response by the specified threshold, (±10%). See Figure 4.
14.Pixels whose response deviates from the average pixel response by the specified threshold, (4 mV), when operating in exposure control
mode. See Figure 4. If dark pattern correction is used with exposure control, the dark pattern acquisition should be completed with exposure
control actuated. Dark current tends to suppress the magnitude of these defects as observed in typical applications, hence line rate changes
may affect perceived defect magnitude. Note: Zero defects allowed for those pixels whose response deviates from the average pixel
response by a 20 mV threshold.
15.Defect coordinates are available upon request.
16.The quantity and type of defects acceptable for a specific application will be negotiated with each customer.
17.A parameter that is measured on every sensor during production testing.
18.A parameter that is quantified during the design verification activity.
19.Configuration KLI−8023−DAA and KLI−8023−MAA uses Gen1 color filter set and is not recommended for new designs.
KLI−8023
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12
TYPICAL PERFORMANCE CUR VES
Defective Pixel Classification
Figure 4. Illustration of Defect Classifications
ExposureExposure
Signal Out
Signal Out
Note 14: Bright Field
Exposure Control
Bright Defect
Note 14: Bright
Field Exposure
Control Dark
Defect
Average
Pixel
Average
Pixel
Note 13: Bright
Field Dark Pixel
Note 13: Bright
Field Bright Pixel
Note 12: Dark
Field Bright
Pixel
Figure 5. KLI−8023 Typical Responsivity
Wavelength (nm)
350
Responsivity (V/mJ/cm2)
400 450 500 750 800 850 900
0
5
10
15
20
25
30
35
650 700550 600 950 1000 1050 1100
KLI−8023
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13
Figure 6. KLI−8023 Typical Modulation Transfer Function
KLI−8023 (9
m
m) Typical Modulation Transfer Function (MTF)
Unified Aperture and Two-Layer Diffusion Calculation Model
Spatial Frequency (Cyc/mm)
MTF (%)
0
010 20 30 40 50 60
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
450 nm
550 nm
650 nm
750 nm
850 nm
Figure 7. KLI−8023 Smear − LDR Operation/1 MHz/355C
Wavelength (nm)
Smear (%)
450
0.00 500 550 600 650 700 750 800
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
Figure 8. KLI−8023 Typical Saturation Voltage vs. VRD
VRD (V)
VSAT (V)
12.0
3.0 12.5 13.0 13.5 14.0 14.5
3.5
4.0
4.5
5.0
5.5
15.0
f
R
HIGH
= 12 V
KLI−8023
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14
Figure 9. KLI−8023 Typical Dark Voltage Level vs. Temperature
Dark Voltage Level (mV)
Device Temperature (5C)
0
050 100 150 200
10
20
30
40
50
60
70
Figure 10. KLI−8023 Typical CCD Temperature vs. Operating Frequency
Pixel Frequency (MHz)
CCD Temperature (5C)
0
40 1234567
42
44
46
48
50
52
54
56
58
60
Figure 11. KLI−8023 Typical Device Response Linearity
Relative Light Level
Sensor Output (V)
0
1
2
3
4
5
6
0 0.5 1.0 1.5 2.0 2.5
Sensor Output
Linear
KLI−8023
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15
KLI−8023 Reference Design
The KLI−8023 Reference Design provides a baseline
reference for the design of a KLI−8023 image sensor into
your electronic imaging application. The circuit below uses
inexpensive off-the-shelf components to provide
voltage-translated clock signals and DC bias supplies
required to support the KLI−8023.
Figure 12. Reference Design
MASTER
OSCILLATOR
PLD
KLI−8023
IMAGE SENSOR
+15 V
2N3904
180
750
.1
Vout
RED
+15V
2N3904
180
750
.1
Vout
GREE
N
+15 V
2N3904
180
750
.1
Vout
BLUE
MPS3646
MPS577
1
33
100K
100K
220pF 220pF
.1
1N914A
1N914A
1K
TG1
LOGR
LOGG
25
12
14
22
19
2
39
6
34
32
9
f1A
f2B
f2A
f1B
74ACT 11244
IG SUB
1,3,10,11 ,15,18 ,20, 21
,23,27,30 ,31,33,38,40
36
fR
1N914
or
eqiv .1
10 uF .1 uF
18K
820
100 uF
Ferrite Bead
+15V
VSSR
VSSG
VSSB
VDD
RD
OG
26
29
28
13
17
24
16
VIDG
VIDR
VIDB
10 K
.1
.1
.1
.1
2A1
2A2
2A3
2A4
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1/G
2/G
2A1
2A2
2A3
2A4
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1/G
2/G
+12.0V
+6.8 V
+6.8 V
+6.8 V
100
100
74ACT 11244
EL7202
.1
.1
35 ID
Rd
Rd
Rd
Rd
.1
.1
LS
8
TG2
+6.8 V EL7202
+6.8 V EL7202
100
100
KLI−8023
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16
REFERENCE DESIGN CIRCUIT OVERVIEW
Programmable Logic
See the timing waveform requirements earlier in this
document before programming a logic device.
Clock Drivers
There are three types of clock drivers (voltage translating
buffers) used in this reference design. The most important
performance consideration is the ability of the clock driver
to drive the capacitive loads presented by the various gates
of the CCD.
Reset Driver
The RESET, (fR), gate presents a small capacitive load
of 100 pF, and requires fast rise and fall times.
The complimentary bipolar switching transistor circuit
shown in Figure 12 provides a low cost solution. The circuit
alternately drives the PNP and NPN transistors into
saturation, which switches the output between VCC and
ground. A 33 - W series-damping resistor is used to suppress
ringing.
Exposure Control and Transfer Gates
The exposure control gates; LOGR and LOGG, and the
transfer gates; TG1 and TG2 each present a moderate
capacitive load of 500 pF. The Elantec 7202 Dual-Channel
Power MOSFET driver delivers a peak output current of
2 amperes: more than enough to meet the rise and fall
requirements of the LOG and TG gates. Series damping
resistors are used to prevent ringing in the LOGR and LOGG
gates. The transfer gates are connected together and driven
by a single EL7202.
CCD Shift Register Driver
The CCD clock phases (f1A, f2A, f1B and f2B) present
a significant load of 3,100 pF per phase. Two 74ACT11244
octal bu ffers provide an efficient solution. Each clock phase
is driven by four gates connected in parallel to increase
output drive current. The 6.5-volt swing required by the shift
register is obtained by setting VCC to 6.8 V. Series damping
resistors R D are used to suppress ringing of the clock signals.
Values for RD should be varied to eliminate ringing and
achieve 50% crossover between each pair of shift register
clocks.
Bias Supplies
VDD, RD and OG
VDD and VRD are supplied directly from the 15 V input
power supply and OG is supplied by a voltage divider.
The input power should be sufficiently filtered to prevent
noise from coupling into the output stage of the KLI−8013
through the VDD node. Current spikes in the VRD and VDD
nodes, due to switching of the on-chip reset FET, are
suppressed b y the addition of a 0.1 mF decoupling capacitor
to ground at each node. The decoupling capacitors should be
located a s close as possible to the pins of the CCD and should
have a solid connection to ground. OG is also decoupled to
suppress voltage spikes the output gate of the device.
The OG node draws negligible current.
OG, VSSR, VSSG, VSSB
A forward-biased diode provides an inexpensive and
reliable voltage source for all three VSS nodes.
The switching action of the reset FET of the output stage can
cause voltage spikes to occur on the VSS nodes.
A decoupling capacitor located as close as practical to each
VSS pin, and connected to a solid system ground, will
minimize voltage spiking. In high dynamic range systems,
crosstalk between VSS channels might present a noise
problem. A separate supply for each of the three VSS nodes
will minimize channel crosstalk if it proves to be a problem.
Output Buffers
An emitter follower circuit buffers each output channel.
The emitter follower provides a high impedance load to the
on-chip source follower output stage, and provides low
output impedance for driving the downstream analog signal
processing circuits. A 180-W resistor connected between the
base and emitter of the emitter follower uses the forward
biased base to emitter voltage drop to provide a constant
current load for the on-chip output stage.
KLI−8023
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17
DEFECT DEFINITIONS
Table 6. OPERATING CONDITION SPECIFICATIONS
(Test Conditions: T = 25°C, fCLK = 1 MHz, tINT = 8.054 ms)
Field Defect Type Threshold Units Notes Number
Dark Bright 16.0 mV 20, 21 0
Bright Bright/Dark 10 % 20, 22 0
Bright Exposure Control 4.0 mV 20, 23, 24 32
20.Defective pixels will be separated by at least one non-defective pixel within and across channels.
21.Pixels whose response is greater than the average response by the specified threshold. See Figure 13 below.
22.Pixels whose response is greater or less than the average response by the specified threshold. See Figure 13 below.
23.Pixels whose response deviates from the average pixel response by the specified threshold when operating in exposure control mode. See
Figure 13 below.
24.Defect coordinates are available upon request.
Figure 13. Illustration of Defect Classifications
ExposureExposure
Signal Out
Signal Out
Note 4: Bright Field
Exposure Control
Bright Defect
Note 4: Bright
Field Exposure
Control Dark
Defect
Average
Pixel
Average
Pixel
Note 3: Bright
Field Dark Pixel
Note 3: Bright
Field Bright Pixel
Note 2: Dark
Field Bright
Pixel
KLI−8023
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18
OPERATION
Table 7. ABSOLUTE MAXIMUM RATINGS
Description Symbol Minimum Maximum Unit Notes
Gate Pin Voltage VGATE −0.5 16 V 25, 26
Pin-to-Pin Voltage VPIN−PIN 16 V 25, 27
Diode Pin Voltage VDIODE −0.5 16 V 25, 28
Output Bias Current IDD −10 mA 29
Output Load Capacitance CVID,LOAD 15 pF
CCD Clocking Frequency fC 20 MHz 30
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be af fected.
25.Referenced to substrate voltage.
26.Includes pins: f1n (n = A or B), f2n (n = A or B), TG1, TG2, fR, OG, IG, and LOGn (n = R, G, B).
27.Voltage difference (either polarity) between any two pins.
28.Includes pins: VIDn, VSSn, RD, VDD, LS and ID (n = R, G, B).
29.Care must be taken not to short output pins to ground during operation as this may cause permanent damage to the output structures.
30.Charge transfer ef ficiency will degrade at frequencies higher than the maximum clocking frequency. VIDn load resistor values may need to
be decreased as well.
31.Noise performance will degrade with increasing temperatures.
32.Long-term storage at the maximum temperature will accelerate color filter degradation.
33.Exceeding the upper limit on output load capacitance will greatly reduce the output frequency response. Thus, direct probing of the output
pins with conventional oscilloscope probes is not recommended.
34.The absolute maximum ratings for the entire table indicate the limits of this device beyond which damage may occur. The Operating ratings
indicate the conditions where the design should operate the device. Operating at or near these ratings do not guarantee specific performance
limits. Guaranteed specifications and test conditions are contained in the Imaging Performance section.
Device Input ESD Protection Circuit (Schematic)
Figure 14. ESD Protection Circuit
To Device
Function
SUB
I/O Pin
Vt − 20 V
CAUTION: To allow for maximum performance, this device was designed with limited input protection; thus, it is sensitive to electrostatic
induced damage. These devices should be installed in accordance with strict ESD handling procedures!
KLI−8023
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19
DC Bias Operating Conditions
Table 8. DC BIAS OPERATING CONDITIONS
Description Symbol Minimum Nominal Maximum Units Notes
Substrate VSUB 0 V
Output Buf fer Return VVSS 0.5 0.65 0.75 V
Reset Drain Bias (Normal Mode) VRD 10.5 11.0 11.5 V
Reset Drain Bias (High DR Mode) VRD 14.5 VVDD 15.5 V
Output Buffer Supply VVDD 14.5 15.0 15.5 V
Output Bias Current/Channel IIDD −8 −4 −2 mA 35
Output Gate Bias VOG 0.5 0.65 0.75 V
Light Shield/Drain Bias VLS 12.0 15.0 15.5 V
Test Pin − Input Gate VIG 0 V
Test Pin − Input Diode VID 12.0 15.0 15.5 V
35.A current sink must be supplied for each output. Load capacitance should be minimized so as not to limit bandwidth. RX serves as the load
bias for the on-chip amplifiers. Values of RX and RL should be chose to optimize performance for a given operating frequency , but RX should
not be less than 75 W. Figure 15 below shows one such solution.
Typical Output Bias/Buffer Circuit
Figure 15. Typical Output Bias/Buffer Circuit
To Device
Output Pin: VIDn
(Minimize Path Length)
2N2369
or Similar*
V
DD
RX = 180 W*RL = 750 W*
0.1 mF
Buffered Output
KLI−8023
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20
AC Operating Conditions
Table 9. AC ELECTRICAL CHARACTERISTICS − AC TIMING REQUIREMENTS
Description Symbol Minimum Nominal Maximum Units Notes
CCD Element Duration 1e (= 1/fCLK) 167 1,000 ns 1e Count
H1A/B, H2A/B Rise Time tRISE 20 100 ns
Line Integration Period 1L (= tINT) 1.343 8,054 ms 8,054e Counts
PD−CCD Transfer Period tPD 2666 16,000 ns 16e Counts
Transfer Gate 1 Clear tTG1 167 1,000 ns 1e Count
Transfer Gate 2 Clear tTG2 167 1,000 ns 1e Count
Charge Drain Duration tDR 1,000 ns 38
Reset Pulse Duration tRST 20 ns 36
Clamp to H2 Delay tCD 6 ns 37
Sample to Reset Edge Delay tSD 6 ns 37
36.Minimum values given are for 6 MHz CCD operation.
37.Recommended delays for Correlated Double Sampling (CDS) for output.
38.Minimum value required to ensure proper operation, allowing for on-chip propagation delay.
Table 10. AC ELECTRICAL CHARACTERISTICS − CLOCK LEVEL CONDITIONS FOR OPERATION
Description Symbol Minimum Nominal Maximum Units Notes
CCD Readout Clocks High (n = A or B) VH1nH, VH2nH 6.25 6.5 7.0 V
CCD Readout Clocks Low (n = A or B) VH1nL, VH2nL −0.1 0.0 0.1 V 39
Transfer Clocks High (n = 1 or 2) VTGnH 6.25 6.5 7.0 V
Transfer Clocks Low (n = 1 or 2) VTGnL −0.1 0.0 0.1 V 39
Reset Clock High (Normal Mode) VfRH 6.25 6.5 7.0 V
Reset Clock High (High DR Mode) VfRH 11.5 12.0 12.5 V
Reset Clock Low VfRL −0.1 0.0 0.1 V 39
Exposure Clocks High (n = R, G, B) VLOGnH 6.25 6.5 7.0 V 40
Exposure Clocks Low (n = R, G, B) VLOGnL −0.1 0.0 0.1 V 39, 40
39.Care should be taken to insure that low rail overshoot does not exceed –0.5 VDC. Exceeding this value may result in non-photogenerated
charge being injected into the video signal.
40.Connect pin to ground potential for applications where exposure control is not required.
Table 11. CLOCK LINE CAPACITANCE
Description Symbol Minimum Nominal Maximum Units Notes
CHROMA
Phase 1 Clock Capacitance Cf1 4,180 pF 41
Phase 2 Clock Capacitance Cf2 2,000 pF 41
Transfer Gate 1 Capacitance CTG1 925 pF
Transfer Gate 2 Capacitance CTG2 475 pF
Exposure Gate Capacitance CLOG 190 pF
Reset Gate Capacitance CfR11 pF
41.This is the total load capacitance per CCD phase. Since the CCDs are driven from both ends of the sensor, the effective load capacitance
per drive pin is approximately half the value listed.
KLI−8023
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21
TIMING
Figure 16. Line Timing
6e 16e 8002e
tDR
tINT
tEXP
14e 6e
6e 16e 8002e 14e 6e
6e 16e 8002e 14e 6e
6e 16e 8002e 14e 6e
TG1
TG2
LOGn
f1
f2
Figure 17. Photodiode-to-CCD Transfer
TG1
TG2
LOGn
f1
f2
tDR
tPD tTG1 tTG2
1e
First Dark Reference
Pixel Data Valid
Figure 18. Output Timing
VIDn
f2
fR
tRST tCD tSD
tSPL
tCLP
VDARK VFEEDTHRU
VSAT
Clamp*
Sample*
* Required for Correlated Double Sampling
1e
tRISE
KLI−8023
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22
STORAGE AND HANDLING
Table 12. STORAGE CONDITIONS
Description Symbol Minimum Maximum Unit Notes
Storage Temperature TST −25 80 °C 42
Operating Temperature TOP 0 70 °C 43
42.Long-term storage toward the maximum temperature may accelerate color filter degradation.
43.Noise performance will degrade with increasing temperatures.
For information on ESD and cover glass care and
cleanliness, please download the Image Sensor Handling
and Best Practices Application Note (AN52561/D) from
www.onsemi.com.
For information on soldering recommendations, please
download the Soldering and Mounting Techniques
Reference Manual (SOLDERRM/D) from
www.onsemi.com.
For quality and reliability information, please download
the Quality & Reliability Handbook (HBD851/D) from
www.onsemi.com.
For information on device numbering and ordering codes,
please download the Device Nomenclature technical note
(TND310/D) from www.onsemi.com.
For information on Standard terms and Conditions of
Sale, please download Terms and Conditions from
www.onsemi.com.
KLI−8023
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23
MECHANICAL INFORMATION
Completed Assembly
Figure 19. Completed Assembly Drawing (1/2)
KLI−8023
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24
Figure 20. Completed Assembly Drawing (2/2)
KLI−8023
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25
Cover Glass
Figure 21. Two-Sided Multilayer Anti-Reflective Cover Glass Specification (MAR)
Wavelength (nm)
Reflectance (%)
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
400 450 500 550 600 650 700
Reflectance (Two-Sided)
Maximum Reflectance Allowed (Two-Sided)
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KLI−8023/D
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