LM20
2.4V, 10µA, SC70, micro SMD Temperature Sensor
General Description
The LM20 is a precision analog output CMOS
integrated-circuit temperature sensor that operates over a
−55˚C to +130˚C temperature range. The power supply op-
erating range is +2.4 V to +5.5 V. The transfer function of
LM20 is predominately linear, yet has a slight predictable
parabolic curvature. The accuracy of the LM20 when speci-
fied to a parabolic transfer function is ±1.5˚C at an ambient
temperature of +30˚C. The temperature error increases lin-
early and reaches a maximum of ±2.5˚C at the temperature
range extremes. The temperature range is affected by the
power supply voltage. At a power supply voltage of 2.7 V to
5.5 V the temperature range extremes are +130˚C and
−55˚C. Decreasing the power supply voltage to 2.4 V
changes the negative extreme to −30˚C, while the positive
remains at +130˚C.
The LM20’s quiescent current is less than 10 µA. Therefore,
self-heating is less than 0.02˚C in still air. Shutdown capa-
bility for the LM20 is intrinsic because its inherent low power
consumption allows it to be powered directly from the output
of many logic gates or does not necessitate shutdown at all.
Applications
nCellular Phones
nComputers
nPower Supply Modules
nBattery Management
nFAX Machines
nPrinters
nHVAC
nDisk Drives
nAppliances
Features
nRated for full −55˚C to +130˚C range
nAvailable in an SC70 and a micro SMD package
nPredictable curvature error
nSuitable for remote applications
Key Specifications
jAccuracy at +30˚C ±1.5 to ±4 ˚C (max)
jAccuracy at +130˚C & −55˚C ±2.5 to ±5 ˚C (max)
jPower Supply Voltage Range +2.4V to +5.5V
jCurrent Drain 10 µA (max)
jNonlinearity ±0.4 % (typ)
jOutput Impedance 160 Ω(max)
jLoad Regulation
0µA<I
L
<+16 µA −2.5 mV (max)
Typical Application
Full-Range Celsius (Centigrade) Temperature Sensor (−55˚C to +130˚C)
Operating from a Single Li-Ion Battery Cell
Output Voltage vs Temperature
10090802
V
O
= (−3.88x10
−6
xT
2
) + (−1.15x10
−2
xT) + 1.8639
where:
T is temperature, and VOis the measured output voltage of the LM20.
10090824
Temperature (T) Typical V
O
+130˚C +303 mV
June 2002
LM20 2.4V, 10µA, SC70, micro SMD Temperature Sensor
© 2002 National Semiconductor Corporation DS100908 www.national.com
Typical Application (Continued)
Temperature (T) Typical V
O
+100˚C +675 mV
+80˚C +919 mV
+30˚C +1515 mV
+25˚C +1574 mV
0˚C +1863.9 mV
−30˚C +2205 mV
−40˚C +2318 mV
−55˚C +2485 mV
Connection Diagrams
SC70-5 micro SMD
10090801
Note:
- GND (pin 2) may be grounded or left floating. For optimum thermal
conductivity to the pc board ground plane pin 2 should be grounded.
- NC (pin 1) should be left floating or grounded. Other signal traces
should not be connected to this pin.
Top View
See NS Package Number MAA05A
10090832
Note:
- Pin numbers are referenced to the package marking text orientation.
- Reference JEDEC Registration MO-211, variation BA
- The actual physical placement of package marking will vary slightly from
part to part. The package marking will designate the date code and will vary
considerably. Package marking does not correlate to device type in any way.
Top View
See NS Package Number BPA04DDC
Ordering Information
Order Temperature Temperature NS Package Device
Number Accuracy Range Number Marking Transport Media
LM20BIM7 ±2.5˚C −55˚C to +130˚C MAA05A T2B 1000 Units on Tape and Reel
LM20BIM7X ±2.5˚C −55˚C to +130˚C MAA05A T2B 3000 Units on Tape and Reel
LM20CIM7 ±5˚C −55˚C to +130˚C MAA05A T2C 1000 Units on Tape and Reel
LM20CIM7X ±5˚C −55˚C to +130˚C MAA05A T2C 3000 Units on Tape and Reel
LM20SIBP ±3.5˚C −40˚C to +125˚C BPA04DDC Date
Code
250 Units on Tape and Reel
LM20SIBPX ±3.5˚C −40˚C to +125˚C BPA04DDC Date
Code
3000 Units on Tape and Reel
LM20
www.national.com 2
Absolute Maximum Ratings (Note 1)
Supply Voltage +6.5V to −0.2V
Output Voltage (V
+
+ 0.6 V) to
−0.6 V
Output Current 10 mA
Input Current at any pin (Note 2) 5 mA
Storage Temperature −65˚C to
+150˚C
Maximum Junction Temperature
(T
JMAX
) +150˚C
ESD Susceptibility (Note 3) :
Human Body Model 2500 V
Machine Model 250 V
Lead Temperature
SC-70 Package (Note 4) :
Vapor Phase (60 seconds) +215˚C
Infrared (15 seconds) +220˚C
Operating Ratings(Note 1)
Specified Temperature Range: T
MIN
≤T
A
≤T
MAX
LM20B, LM20C with
2.4 V ≤V
+
≤2.7 V −30˚C ≤T
A
≤+130˚C
LM20B, LM20C with
2.7 V ≤V
+
≤5.5 V −55˚C ≤T
A
≤+130˚C
LM20S with
2.4 V ≤V
+
≤5.5 V −30˚C ≤T
A
≤+125˚C
LM20S with
2.7 V ≤V
+
≤5.5 V −40˚C ≤T
A
≤+125˚C
Supply Voltage Range (V
+
) +2.4 V to +5.5 V
Thermal Resistance, θ
JA
(Note 5)
SC-70
micro SMD
415˚C/W
340˚C/W
Electrical Characteristics
Unless otherwise noted, these specifications apply for V
+
= +2.7 V
DC
.Boldface limits apply for T
A
=T
J
=T
MIN
to T
MAX
; all
other limits T
A
=T
J
= 25˚C; Unless otherwise noted.
Parameter Conditions Typical
(Note 6)
LM20B LM20C LM20S Units
(Limit)
Limits Limits Limits
(Note 7) (Note 7) (Note 7)
Temperature to Voltage Error
V
O
= (−3.88x10
−6
xT
2
)
+ (−1.15x10
−2
xT) + 1.8639V
(Note 8)
T
A
= +25˚C to +30˚C ±1.5 ±4.0 ±2.5 ˚C (max)
T
A
= +130˚C ±2.5 ±5.0 ˚C (max)
T
A
= +125˚C ±2.5 ±5.0 ±3.5 ˚C (max)
T
A
= +100˚C ±2.2 ±4.7 ±3.2 ˚C (max)
T
A
= +85˚C ±2.1 ±4.6 ±3.1 ˚C (max)
T
A
= +80˚C ±2.0 ±4.5 ±3.0 ˚C (max)
T
A
= 0˚C ±1.9 ±4.4 ±2.9 ˚C (max)
T
A
= −30˚C ±2.2 ±4.7 ±3.3 ˚C (min)
T
A
= −40˚C ±2.3 ±4.8 ±3.5 ˚C (max)
T
A
= −55˚C ±2.5 ±5.0 ˚C (max)
Output Voltage at 0˚C +1.8639 V
Variance from Curve ±1.0 ˚C
Non-Linearity (Note 9) −20˚C ≤T
A
≤+80˚C ±0.4 %
Sensor Gain (Temperature
Sensitivity or Average Slope)
to equation:
V
O
=−11.77 mV/˚CxT+1.860V
−30˚C ≤T
A
≤+100˚C −11.77 −11.4
−12.2
−11.0
−12.6
−11.0
−12.6
mV/˚C (min)
mV/˚C (max)
Output Impedance 0 µA ≤I
L
≤+16 µA
(Notes 11, 12)
160 160 160 Ω(max)
Load Regulation(Note 10) 0 µA ≤I
L
≤+16 µA
(Notes 11, 12)
−2.5 −2.5 −2.5 mV (max)
Line Regulation +2. 4 V ≤V
+
≤+5.0V +3.3 +3.7 +3.7 mV/V (max)
+5.0 V ≤V
+
≤+5.5 V +11 +11 +11 mV (max)
Quiescent Current +2. 4 V ≤V
+
≤+5.5V 4.5 7 7 7 µA (max)
+2.4V≤V
+
≤+5.0V 4.5 10 10 10 µA (max)
Change of Quiescent Current +2. 4 V ≤V
+
≤+5.5V +0.7 µA
Temperature Coefficient of −11 nA/˚C
Quiescent Current
LM20
www.national.com3
Electrical Characteristics (Continued)
Unless otherwise noted, these specifications apply for V
+
= +2.7 V
DC
.Boldface limits apply for T
A
=T
J
=T
MIN
to T
MAX
; all
other limits T
A
=T
J
= 25˚C; Unless otherwise noted.
Parameter Conditions Typical
(Note 6)
LM20B LM20C LM20S Units
(Limit)
Limits Limits Limits
(Note 7) (Note 7) (Note 7)
Shutdown Current V
+
≤+0.8 V 0.02 µA
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: When the input voltage (VI) at any pin exceeds power supplies (VI<GND or VI>V+), the current at that pin should be limited to 5 mA.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 kΩresistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin.
Note 4: See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in any post 1986 National
Semiconductor Linear Data Book for other methods of soldering surface mount devices.
Note 5: The junction to ambient thermal resistance (θJA) is specified without a heat sink in still air using the printed circuit board layout shown in Figure 1.
Note 6: Typicals are at TJ=T
A= 25˚C and represent most likely parametric norm.
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Accuracy is defined as the error between the measured and calculated output voltage at the specified conditions of voltage, current, and temperature
(expressed in˚C).
Note 9: Non-Linearity is defined as the deviation of the calculated output-voltage-versus-temperature curve from the best-fit straight line, over the temperature
range specified.
Note 10: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating effects can be
computed by multiplying the internal dissipation by the thermal resistance.
Note 11: Negative currents are flowing into the LM20. Positive currents are flowing out of the LM20. Using this convention the LM20 can at most sink −1 µA and
source +16 µA.
Note 12: Load regulation or output impedance specifications apply over the supply voltage range of +2.4V to +5.5V.
Note 13: Line regulation is calculated by subtracting the output voltage at the highest supply input voltage from the output voltage at the lowest supply input voltage.
Typical Performance Characteristics
Temperature Error vs Temperature
10090825
PCB Layouts Used for Thermal Measurements
10090829
a) Layout used for no heat sink measurements.
10090830
b) Layout used for measurements with small heat hink.
FIGURE 1. PCB Lyouts used for thermal measurements.
LM20
www.national.com 4
1.0 LM20 Transfer Function
The LM20’s transfer function can be described in different
ways with varying levels of precision. A simple linear transfer
function, with good accuracy near 25˚C, is
V
O
= −11.69 mV/˚C x T + 1.8663 V
Over the full operating temperature range of −55˚C to
+130˚C, best accuracy can be obtained by using the para-
bolic transfer function
V
O
= (−3.88x10
−6
xT
2
) + (−1.15x10
−2
xT) + 1.8639
solving for T:
A linear transfer function can be used over a limited tempera-
ture range by calculating a slope and offset that give best
results over that range. A linear transfer function can be
calculated from the parabolic transfer function of the LM20.
The slope of the linear transfer function can be calculated
using the following equation:
m = −7.76 x 10
−6
x T − 0.0115,
where T is the middle of the temperature range of interest
and m is in V/˚C. For example for the temperature range of
T
min
=−30 to T
max
=+100˚C:
T=35˚C
and
m = −11.77 mV/˚C
The offset of the linear transfer function can be calculated
using the following equation:
b=(V
OP
(T
max
)+V
OP
(T)+mx(T
max
+T))/2
,
where:
•V
OP
(T
max
) is the calculated output voltage at T
max
using
the parabolic transfer function for V
O
•V
OP
(T) is the calculated output voltage at T using the
parabolic transfer function for V
O
.
Using this procedure the best fit linear transfer function for
many popular temperature ranges was calculated in Figure
2. As shown in Figure 2 the error that is introduced by the
linear transfer function increases with wider temperature
ranges.
2.0 Mounting
The LM20 can be applied easily in the same way as other
integrated-circuit temperature sensors. It can be glued or
cemented to a surface. The temperature that the LM20 is
sensing will be within about +0.02˚C of the surface tempera-
ture to which the LM20’s leads are attached to.
This presumes that the ambient air temperature is almost the
same as the surface temperature; if the air temperature were
much higher or lower than the surface temperature, the
actual temperature measured would be at an intermediate
temperature between the surface temperature and the air
temperature.
To ensure good thermal conductivity the backside of the
LM20 die is directly attached to the pin 2 GND pin. The
tempertures of the lands and traces to the other leads of the
LM20 will also affect the temperature that is being sensed.
Alternatively, the LM20 can be mounted inside a sealed-end
metal tube, and can then be dipped into a bath or screwed
into a threaded hole in a tank. As with any IC, the LM20 and
accompanying wiring and circuits must be kept insulated and
dry, to avoid leakage and corrosion. This is especially true if
the circuit may operate at cold temperatures where conden-
sation can occur. Printed-circuit coatings and varnishes such
as Humiseal and epoxy paints or dips are often used to
ensure that moisture cannot corrode the LM20 or its connec-
tions.
The thermal resistance junction to ambient (θ
JA
) is the pa-
rameter used to calculate the rise of a device junction tem-
perature due to its power dissipation. For the LM20 the
equation used to calculate the rise in the die temperature is
as follows:
T
J
=T
A
+θ
JA
[(V
+
I
Q
)+(V
+
−V
O
)I
L
]
where I
Q
is the quiescent current and I
L
is the load current on
the output. Since the LM20’s junction temperature is the
actual temperature being measured care should be taken to
minimize the load current that the LM20 is required to drive.
The tables shown in Figure 3 summarize the rise in die
temperature of the LM20 without any loading, and the ther-
mal resistance for different conditions.
Temperature Range Linear Equation
V
O
=
Maximum Deviation of Linear Equation
from Parabolic Equation (˚C)
T
min
(˚C) T
max
(˚C)
−55 +130 −11.79 mV/˚C x T + 1.8528 V ±1.41
−40 +110 −11.77 mV/˚C x T + 1.8577 V ±0.93
−30 +100 −11.77 mV/˚C x T + 1.8605 V ±0.70
-40 +85 −11.67 mV/˚C x T + 1.8583 V ±0.65
−10 +65 −11.71 mV/˚C x T + 1.8641 V ±0.23
+35 +45 −11.81 mV/˚C x T + 1.8701 V ±0.004
+20 +30 −11.69 mV/˚C x T + 1.8663 V ±0.004
FIGURE 2. First order equations optimized for different temperature ranges.
LM20
www.national.com5
2.0 Mounting (Continued) 3.0 Capacitive Loads
The LM20 handles capacitive loading well. Without any pre-
cautions, the LM20 can drive any capacitive load less than
300 pF as shown in Figure 4. Over the specified temperature
range the LM20 has a maximum output impedance of 160 Ω.
In an extremely noisy environment it may be necessary to
add some filtering to minimize noise pickup. It is recom-
mended that 0.1 µF be added from V
+
to GND to bypass the
power supply voltage, as shown in Figure 5. In a noisy
environment it may even be necessary to add a capacitor
from the output to ground with a series resistor as shown in
Figure 5. A 1 µF output capacitor with the 160 Ωmaximum
output impedance and a 200 Ωseries resistor will form a 442
Hz lowpass filter. Since the thermal time constant of the
LM20 is much slower, the overall response time of the LM20
will not be significantly affected.
4.0 LM20 micro SMD Light
Sensitivity
Exposing the LM20 micro SMD package to bright sunlight
may cause the output reading of the LM20 to drop by 1.5V. In
a normal office environment of fluorescent lighting the output
voltage is minimally affected (less than a millivolt drop). In
either case it is recommended that the LM20 micro SMD be
placed inside an enclosure of some type that minimizes its
light exposure. Most chassis provide more than ample pro-
tection. The LM20 does not sustain permanent damage from
light exposure. Removing the light source will cause LM20’s
output voltage to recover to the proper value.
SC70-5 SC70-5
no heat sink small heat sink
θ
JA
T
J
−T
A
θ
JA
T
J
−T
A
(˚C/W) (˚C) (˚C/W) (˚C)
Still air 412 0.2 350 0.19
Moving air 312 0.17 266 0.15
See Figure 1 for PCB layout samples.
micro SMD micro SMD
no heat sink small heat fin
θ
JA
T
J
−T
A
θ
JA
T
J
−T
A
(˚C/W) (˚C) (˚C/W) (˚C)
Still air 340 0.18 TBD TBD
Moving air TBD TBD TBD TBD
FIGURE 3. Temperature Rise of LM20 Due to
Self-Heating and Thermal Resistance (θ
JA
)
10090815
FIGURE 4. LM20 No Decoupling Required for
Capacitive Loads Less than 300 pF.
R(Ω) C (µF)
200 1
470 0.1
680 0.01
1 k 0.001
10090816 10090833
FIGURE 5. LM20 with Filter for Noisy Environment and Capacitive Loading greater than 300 pF. Either placement of
resistor as shown above is just as effective.
LM20
www.national.com 6
5.0 Applications Circuits
10090818
FIGURE 6. Centigrade Thermostat
10090819
FIGURE 7. Conserving Power Dissipation with Shutdown
10090828
Most CMOS ADCs found in ASICs have a sampled data comparator input structure that is notorious for causing grief to analog
output devices such as the LM20 and many op amps. The cause of this grief is the requirement of instantaneous charge of the
input sampling capacitor in the ADC. This requirement is easily accommodated by the addition of a capacitor. Since not all ADCs
have identical input stages, the charge requirements will vary necessitating a different value of compensating capacitor. This ADC
is shown as an example only. If a digital output temperature is required please refer to devices such as the LM74.
FIGURE 8. Suggested Connection to a Sampling Analog to Digital Converter Input Stage
LM20
www.national.com7
Physical Dimensions inches (millimeters) unless otherwise noted
5-Lead SC70 Molded Package
Order Number LM20BIM7 or LM20CIM7X
NS Package Number MAA05A
LM20
www.national.com 8
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
4-Bump micro SMD Ball Grid Array Package
Order Number LM20SIBP or LM20SIBPX
NS Package Number BPA04DDC
The following dimensions apply to the BPA04DDC package
shown above: X1=X2 = 853µm ±30µm, X3= 900µm ±50µm
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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Corporation
Americas
Email: support@nsc.com
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Europe
Fax: +49 (0) 180-530 85 86
Email: europe.support@nsc.com
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Response Group
Tel: 65-2544466
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Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
www.national.com
LM20 2.4V, 10µA, SC70, micro SMD Temperature Sensor
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
National P/N LM20 - 2.4V, 10µA, SC70, micro SMD Temperature Sensor
See Microcontroller
Products
Products > Analog - Thermal Management > LM20
LM20 Product Folder
2.4V, 10µA, SC70, micro SMD Temperature Sensor
Generic P/N 20
General
Description Features Datasheet Package
& Models Samples
& Pricing Design
Tools Application
Notes
Parametric Table Parametric Table
Operating Temperature Range -40 to +125 Deg C, -55 to
+130 Deg C
Sensor Gain (Tmin to Tmax) -11.7 mV/Deg C
Supply Voltage Range +2.4V 5.5V
Quiesent Current (mA) .01
Min. Accuracy -3.5 Deg C, -2.5 Deg C, -5 Deg C
Max. Accuracy +3.5 Deg C, +2.5 Deg C, +5 Deg
C
Temp. Resolution Analog Output
Datasheet
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02 View Online Download Receive via
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Package Availability, Models, Samples & Pricing
Part Number Package Status Models Samples &
Electronic
Orders
Budgetary Pricing Std
Pack
Size
Package
Marking
Type Pins MSL SPICE IBIS Qty $US each
LM20SIBP microSMD 4MSL Full production N/A N/A
Samples
Buy Now
1K+ $0.3000 reel
of
250
¢1
$I
LM20SIBPX microSMD 4MSL Full production N/A N/A 1K+ $0.3000 reel
of
3000
¢1
$I
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM20.html (1 of 4) [Aug-09-2002 1:56:35 PM]
National P/N LM20 - 2.4V, 10µA, SC70, micro SMD Temperature Sensor
LM20BIM7 SC-70 5MSL Full production N/A N/A
Samples
Buy Now
1K+ $0.3500 reel
of
1000
T2B
¢1¢T
LM20CIM7 SC-70 5MSL Full production N/A N/A
Samples
Buy Now
1K+ $0.3000 reel
of
1000
T2C
¢1¢T
LM20BIM7X SC-70 5MSL Full production N/A N/A
Buy Now
1K+ $0.3500 reel
of
3000
T2B
¢1¢T
LM20CIM7X SC-70 5MSL Full production N/A N/A
Buy Now
1K+ $0.3000 reel
of
3000
T2C
¢1¢T
LM20BI MDC Die Full production N/A N/A
Samples
tray
of
N/A -
LM20CI MDC Die Full production N/A N/A
Samples
tray
of
N/A -
LM20BI MWC Wafer Full production N/A N/A wafer jar
of
N/A -
General Description
The LM20 is a precision analog output CMOS integrated-circuit temperature sensor that operates over a -
55°C to +130°C temperature range. The power supply operating range is +2.4 V to +5.5 V. The transfer
function of LM20 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the
LM20 when specified to a parabolic transfer function is ±1.5°C at an ambient temperature of +30°C. The
temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes.
The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V
the temperature range extremes are +130°C and -55°C. Decreasing the power supply voltage to 2.4 V
changes the negative extreme to -30°C, while the positive remains at +130°C.
The LM20's quiescent current is less than 10 µA. Therefore, self-heating is less than 0.02°C in still air.
Shutdown capability for the LM20 is intrinsic because its inherent low power consumption allows it to be
powered directly from the output of many logic gates or does not necessitate shutdown at all.
Features
● Rated for full -55°C to +130°C range
● Available in an SC70 and a micro SMD package
● Predictable curvature error
● Suitable for remote applications
Key Specification
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM20.html (2 of 4) [Aug-09-2002 1:56:35 PM]
National P/N LM20 - 2.4V, 10µA, SC70, micro SMD Temperature Sensor
Accuracy at +30°C ±1.5 to ±4 °C (max)
Accuracy at +130°C & -55°C ±2.5 to ±5 °C (max)
Power Supply Voltage Range +2.4V to +5.5V
Current Drain 10 µA (max)
Nonlinearity ±0.4 % (typ)
Output Impedance 160 (max)
Load Regulation 0 µA < IL< +16 µA -2.5 mV (max)
Applications
● Cellular Phones
● Computers
● Power Supply Modules
● Battery Management
● FAX Machines
● Printers
● HVAC
● Disk Drives
● Appliances
Design Tools
Title Size in Kbytes Date View Online Download Receive via Email
Buy LM20 Evaluation Board - SC70
Package View
Buy LM20 Evaluation Board - micro
SMD Package View
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Application Notes
Title Size in
Kbytes Date View Online Download Receive via
Email
AN-1112: Application Note 1112 Micro SMD Wafer Level
Chip Scale Package 620
Kbytes
27-
Mar-
02 View Online Download Receive via
Email
Application Note 1112 Micro SMD Wafer Level Chip Scale
Package (JAPANESE)171
Kbytes
View Online
Download
Receive via
Email
If you have trouble printing or viewing PDF file(s), see Printing Problems.
[Information as of 5-Aug-2002]
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National P/N LM20 - 2.4V, 10µA, SC70, micro SMD Temperature Sensor
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