TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS049E −SEPTEMBER 2007
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DIntegral Visible Light Cutoff Filter
DMonolithic Silicon IC Containing
Photodiode, Operational Amplifier, and
Feedback Components
DConverts Light Intensity to a Voltage
DHigh Irradiance Responsivity, Typically
111 mV/(W/cm2) at p = 940 nm (TSL260R)
DCompact 3-Lead Plastic Package
DSingle Voltage Supply Operation
DLow Dark (Offset) Voltage....10mV Max
DLow Supply Current......1.1 mA Typical
DWide Supply-Voltage Range.... 2.7 V to 5.5 V
DReplacements for TSL260, TSL261, and
TSL262
DRoHS Compliant (−LF Package Only)
Description
The TSL260R, TSL261R, and TSL262R are infrared light-to-voltage optical sensors, each combining a
photodiode and a transimpedance amplifier (feedback resistor = 16 MΩ, 8 MΩ, and 2.8 MΩ respectively) on a
single monolithic IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode.
These devices have improved amplifier offset-voltage stability and low power consumption and are supplied
in a 3-lead plastic sidelooker package with an integral visible light cutoff filter and lens. When supplied in the
lead (Pb) free package, the device is RoHS compliant.
Functional Block Diagram
Voltage
Output
+
−
Available Options
DEVICE TAPACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER
TSL260R 0°C to 70°C3-lead Sidelooker S TSL260R
TSL260R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL260R−LF
TSL260R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL260RSM−LF
TSL261R 0°C to 70°C3-lead Sidelooker S TSL261R
TSL261R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL261R−LF
TSL261R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL261RSM−LF
TSL262R 0°C to 70°C3-lead Sidelooker S TSL262R
TSL262R 0°C to 70°C3-lead Sidelooker — Lead (Pb) Free S TSL262R−LF
TSL262R 0°C to 70°C3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL262RSM−LF
r
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
PACKAGE S
SIDELOOKER
(FRONT VIEW)
1
GND
2
VDD
3
OUT
PACKAGE SM
SURFACE MOUNT
SIDELOOKER
(FRONT VIEW)
1
GND
2
VDD
3
OUT
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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Terminal Functions
TERMINAL
DESCRIPTION
NAME NO. DESCRIPTION
GND 1 Ground (substrate). All voltages are referenced to GND.
OUT 3 Output voltage
VDD 2Supply voltage
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VDD (see Note 1) 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, IO ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of short-circuit current at (or below) 25°C (see Note 2) 5 s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA −25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg −25°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package) 260°C. . . . . . . . . . . . . . . . . . . .
Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package) 260°C. . . . . . . . . . . . . . . . . . .
†Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages are with respect to GND.
2. Output may be shorted to supply.
Recommended Operating Conditions
MIN NOM MAX UNIT
Supply voltage, VDD 2.7 5.5 V
Operating free-air temperature, TA0 70 °C
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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Electrical Characteristics at VDD = 5 V, TA = 25°C, λp = 940 nm, RL = 10 kΩ (unless otherwise noted)
(see Notes 3, 4, and 5)
PARAMETER
TEST TSL260R TSL261R TSL262R
UNIT
PARAMETER
TEST
CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT
VDDark voltage Ee = 0 0 4 10 0 4 10 0 4 10 mV
VOM
Maximum output
voltage VDD = 4.5 V 3 3.3 3 3.3 3 3.3 V
Ee = 18 μW/cm2123
VOOutput voltage Ee = 46 μW/cm21 2 3 V
VO
Output voltage
Ee = 220 μW/cm2123
V
E
e
= 18 μW/cm2,8 mV/°C
Temperature
Ee = 18 μW/cm
,
TA = 0°C to 70°C0.4 %/°C
T
emperature
coefficient of E
e
= 46 μW/cm2,8 mV/°C
αvo
coefficient of
output voltage
(V )
Ee = 46 μW/cm
,
TA = 0°C to 70°C0.4 %/°C
pg
(VO)E
e
= 220 μW/cm2,8 mV/°C
Ee = 220 μW/cm
,
TA = 0°C to 70°C0.4 %/°C
Ne
Irradiance
responsivity See Note 6 111 43.5 9.1 mV/(μW/cm2)
Ee = 18 μW/cm21.1 1.7
IDD Supply current Ee = 46 μW/cm21.1 1.7 mA
DD
pp y
Ee = 220 μW/cm21.1 1.7
NOTES: 3. Measurements are made with RL = 10 kΩ between output and ground.
4. Optical measurements are made using small-angle incident radiation from an LED optical source.
5. The input irradiance Ee is supplied by a GaAs LED with peak wavelength λp = 940 nm
6. Irradiance responsivity is characterized over the range VO = 0.05 to 2.9 V. The best-fit straight line of Output Voltage VO versus
irradiance Ee over this range will typically have a positive extrapolated VO value for Ee = 0.
Dynamic Characteristics at TA = 25°C (see Figure 1)
PARAMETER
TEST CONDITIONS
TSL260R TSL261R TSL262R
UNIT
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT
trOutput pulse rise time VDD = 5 V, λp = 940 nm 260 70 7 μs
tfOutput pulse fall time VDD = 5 V, λp = 940 nm 260 70 7 μs
VnOutput noise voltage VDD = 5 V,
f = 1000 Hz
Ee = 0, 0.8 0.7 0.6 μV/√Hz
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORM
TEST CIRCUIT
Input
Ee
10%
90%
Output
(see Note B)
tr
TSL26xR RL
VDD
2
1
3
+
−
Output
Pulse
Generator
LED
(see Note A) tf
90%
10%
NOTES: A. The input irradiance is supplied by a pulsed GaAs light-emitting diode with the following characteristics: λp = 940 nm,
tr < 1 μs, tf < 1 μs.
B. The output waveform is monitored on an oscilloscope with the following characteristics: tr < 100 ns, Zi ≥ 1 MΩ, Ci ≤ 20 pF.
Figure 1. Switching Times
TYPICAL CHARACTERISTICS
0.4
0
Normalized Output Voltage
1
0.8
0.6
0.2
θ − Angular Displacement
TSL260R
80°60°40°20°0°80°60°40°20°
Optical Axis
NORMALIZED OUTPUT VOLTAGE
vs
ANGULAR DISPLACEMENT
V −
O
Figure 2
TSL262R
TSL261R
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
vs
IRRADIANCE
Figure 3
0.1 1 10 100 1000
VDD = 5 V
λp = 940 nm
RL = 10 k
TA = 25°C
VO — Output Voltage — V
Ee — Irradiance — W/cm2
0.01
0.1
1
10
TSL260R
TSL261R
TSL262R
Figure 4
PHOTODIODE SPECTRAL RESPONSIVITY
λ − Wavelength − nm
700 800 900 1000 1100600
0
0.2
0.4
0.6
0.8
1
Relative Responsivity
TA = 25°C
Figure 5
4
2
1
0
5.52.5 3 3.5
5
MAXIMUM OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
4 4.5 5
− Maximum Output Voltage − V
V
OM
3
VDD − Supply Voltage − V
RL = 10 kΩ
TA = 25°C
Figure 6
1
0.6
012 3
1.6
4
1.4
1.2
0.8
VO − Output Voltage − V
− Supply Current − mA
IDD
SUPPLY CURRENT
vs
OUTPUT VOLTAGE
VDD = 5 V
RL = 10 k
TA = 25°C
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS049E −SEPTEMBER 2007
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APPLICATION INFORMATION
NOTE A: Pullup resistor extends linear output range to near VDD with minimal (several millivolts typical) effect on VDARK; particularly useful
at low VDD (3 V to 5 V).
TSL26xR
Sensor Output
RP = 100 kΩ
VDD
2
3
1
Figure 7. Pullup for Increased VOM
†OPTEK part number
TSL261R
Sensor Output
50-kΩ
Threshold
5 V
2
3
1
+
−
100 Ω
OP240†
5 V
4
5 V
4.7 kΩ
10 kΩ
15 kΩ
LM393
1
8
3
2
15 kΩ
NOTE A: Output goes high when beam is interrupted; working distance is several inches or less. Intended for use as optical-interrupter switch
or reflective-object sensor.
Figure 8. Short-Range Optical Switch With Hysteresis
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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APPLICATION INFORMATION
NOTE A: Output pulses low until beam is interrupted. Useful range is 1 ft to 20 ft; can be extended with lenses. This configuration is suited
for object detection, safety guards, security systems, and automatic doors.
†Stanley part number
TSL262R
Sensor Output
50 kΩ
5 V
2
3
1
+
−
BN301†
4
5 V
4.7 kΩ
15-kΩ
TLC372
1
8
3
2
100 kΩ
5 V
0.01 μF
Threshold
TLC555
4
3
1
5 V
8
27 kΩ
7
6
2
3 kΩ
0.01 μF
2N3906
18 Ω
Figure 9. Pulsed Optical-Beam Interrupter
NOTE A: Output goes low when light pulses from emitter are reflected back to sensor. Range is 6 in to 18 in depending upon object
reflectance. Useful for automatic doors, annunciators, object avoidance in robotics, automatic faucets, and security systems.
†OPTEK part number
‡Stanley part number
OP295†
or
BN301‡
560 kΩ
TSL260R
Sensor
6 V
2
3
1
0.1 μF
NE567
41 kΩ
270 kΩ
0.1 μF
4.7 μF
1 μF0.1 μF
10 kΩ
100 Ω
+
+
3
27
1
8
Light
Shield
2N3904
0.01 μF
5
6
Figure 10. Proximity Detector
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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APPLICATION INFORMATION
NOTE A: Single-channel remote control can be used to switch logic or light dc loads by way of U5 or ac loads by way of the optocoupler and
triac as shown. Applications include ceiling fans, lamps, electric heaters, etc.
†OPTEK part number
D1
BN301†
9 V
3
1
C1
1 μF
+
Q1
2N3904
3
1
2
R2
1 kΩ
R3
22 Ω
R1
680 Ω
5
7
6
2
84
TRANSMITTER
U1
TLC555
S1
15
13
3
1
16
4
C3
1 μF
+ +
7
1
C2
0.1 μF
2
3
IN
OUT
COM
6 V
R4
180 Ω
AC Load
J1 2
3
1
6
4
1
2
R8
300 Ω
R7
4.7 kΩ
8
1
6
2
5
34
6 V
6 V
C5
0.1 μF
R5
7.5 kΩ
R6
4.7 kΩ
C4
4.7 μF
6 V
1
2
3
120 V
60 Hz
PRE VCC CLR
J
CLK
KGND
Q
R9
1 kΩ
Q3
2N3904
52
TIL3010
U3
U2
NE567
U4
TSL260R
Sensor
U5
1/2 SN74HC76
To Sensor
Q2
TIC225C
RECEIVER
Freq
Trim
Figure 11. IR Remote Control
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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APPLICATION INFORMATION
NOTE A: Simple transmission of audio signal over short distances (<10 ft). Applications include wireless headphones, wireless-telephone
headset, and wireless-headset intercom.
†OPTEK part number
IN
OUT
COM
6 V
U2
TLE2426
C1
1 μF
+
R2
20 kΩ
_
+
D1
OP295†
D2
OP295†
R3
40 Ω
Q1
2N3904
R1
10 kΩ
Audio
Input
6 V
6 V
IN
OUT
COM
9 V
U2
TLE2426
_
+
9 V
C2
47 μF
R1
100 kΩ
C1
100 pF
R2
10 kΩ
IN
OUT
COM
9 V
U1
TSL261R
Sensor
C3
1 μF
3
2
6
7
4
1
3
2
U3A
NE5534
U1
TLC271
2
375
4
81
6
TRANSMITTER
RECEIVER
+
+
VOL
Output
(to headphones)
Figure 12. IR Voice-Band Audio Link
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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APPLICATION INFORMATION
PCB Pad Layout
Suggested PCB pad layout guidelines for the SM surface mount package are shown in Figure 16.
3.2
1.0 1.0 1.0
1.01.0
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Figure 13. Suggested SM Package PCB Layout
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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MECHANICAL DATA
The TSL260R, TSL261R, and TSL262R are supplied in a clear 3-lead through-hole package with a molded lens. The
integrated photodiode active area is typically 1,0 mm2 (0.0016 in2) for TSL260R, 0,5 mm2 (0.00078 in2) for the
TSL261R, and 0,26 mm2 (0.0004 in2) for the TSL262R.
PACKAGE S PLASTIC SINGLE-IN-LINE SIDE-LOOKER PACKAGE
1.642.60
2.30
4.60
R 0.90
1.80
0.42
1
2y 2
0.47 TYP
TOP VIEW
FRONT VIEW SIDE VIEW
0.42
1.56
14.86 + 0.50
4.60
0.15
Note B
Lead Free
Available
Pb
NOTES: A. All linear dimensions are in millimeters; tolerance is ± 0.25 mm unless otherwise stated.
B. Dimension is to center of lens arc, which is located below the package face.
C. The integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens surface.
D. Index of refraction of clear plastic is 1.55.
E. Lead finish for TSL26xR: solder dipped, 63% Sn/37% Pb. Lead finish for TSL26xR−LF: solder dipped, 100% Sn.
F. This drawing is subject to change without notice.
Figure 14. Package S — Single-In-Line Side-Looker Package Configuration
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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MECHANICAL DATA
PACKAGE SM PLASTIC SURFACE MOUNT SIDE-LOOKER PACKAGE
1.642.60
2.30
4.60
R 0.90
1.80
0.42
1.00
0.47 TYP
TOP VIEW
SIDE VIEWFRONT VIEW
0.42
5.73 + 0.50
4.60
0.15 Note B
2.59
0.62 + 0.10 1.97
0.62 +0.10
−0.15
Lead Free
Pb
2y 2
NOTES: A. All linear dimensions are in millimeters; tolerance is ± 0.25 mm unless otherwise stated.
B. Dimension is to center of lens arc, which is located below the package face.
C. The integrated photodiode active area is typically located in the center of the lens and 0.97 mm below the top of the lens surface.
D. Index of refraction of clear plastic is 1.55.
E. Lead finish for TSL26xRSM−LF: solder dipped, 100% Sn.
F. This drawing is subject to change without notice.
Figure 15. Package SM — Surface Mount Side-Looker Package Configuration
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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PRODUCTION DATA — information in this document is current at publication date. Products conform to
specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard
warranty. Production processing does not necessarily include testing of all parameters.
LEAD-FREE (Pb-FREE) and GREEN STATEMENT
Pb-Free (RoHS) TAOS’ terms Lead-Free or Pb-Free mean semiconductor products that are compatible with the current
RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous
materials. Where designed to be soldered at high temperatures, TAOS Pb-Free products are suitable for use in specified
lead-free processes.
Green (RoHS & no Sb/Br) TAOS defines Green to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and
Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material).
Important Information and Disclaimer The information provided in this statement represents TAOS’ knowledge and
belief as of the date that it is provided. TAOS bases its knowledge and belief on information provided by third parties,
and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate
information from third parties. TAOS has taken and continues to take reasonable steps to provide representative
and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and
chemicals. TAOS and TAOS suppliers consider certain information to be proprietary, and thus CAS numbers and other
limited information may not be available for release.
NOTICE
Texas Advanced Optoelectronic Solutions, Inc. (TAOS) reserves the right to make changes to the products contained in this
document to improve performance or for any other purpose, or to discontinue them without notice. Customers are advised
to contact TAOS to obtain the latest product information before placing orders or designing TAOS products into systems.
TAOS assumes no responsibility for the use of any products or circuits described in this document or customer product
design, conveys no license, either expressed or implied, under any patent or other right, and makes no representation that
the circuits are free of patent infringement. TAOS further makes no claim as to the suitability of its products for any particular
purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any
and all liability, including without limitation consequential or incidental damages.
TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS, INC. PRODUCTS ARE NOT DESIGNED OR INTENDED FOR
USE IN CRITICAL APPLICATIONS IN WHICH THE FAILURE OR MALFUNCTION OF THE TAOS PRODUCT MAY
RESULT IN PERSONAL INJURY OR DEATH. USE OF TAOS PRODUCTS IN LIFE SUPPORT SYSTEMS IS EXPRESSLY
UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK.
LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced
Optoelectronic Solutions Incorporated.
TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
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