tslx257
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TSLB257, TSLG257, TSLR257
HIGHĆSENSITIVITY COLOR
LIGHTĆTOĆVOLTAGE CONVERTERS
TAOS027B – MARCH 2002
1The LUMENOLOGYr
Companyt
tCopyright E 2002, TAOS Inc.
www.taosinc.comDConverts Light Intensity to Output VoltageDIntegral Color Filter in Blue, Green, or RedDMonolithic Silicon IC ContainingPhotodiode, Operational Amplifier, andFeedback ComponentsDHigh SensitivityDSingle Voltage Supply OperationDLow Noise (200 µVrms Typ to 1 kHz)DRail-to-Rail OutputDHigh Power-Supply Rejection (35 dB at1 kHz)DCompact 3-Leaded Plastic Package
Description
The TSLB257, TSLG257, and TSLR257 are high-sensitivity low-noise light-to-voltage optical converters thatincorporate onboard blue, green, and red optical filters, respectively. These devices combine a photodiode anda transimpedance amplifier on a single monolithic CMOS integrated circuit with a color filter over the photodiode.Output voltage is directly proportional to light intensity (irradiance) on the photodiode. Each device has atransimpedance gain of 320 MΩ with improved offset voltage stability and low power consumption, and issupplied in a 3-lead clear plastic sidelooker package with an integral lens.
These devices are ideal for applications such as colorimetry, printing process control, display color correction,and selectively ambient light detection or rejection.
Functional Block Diagram
VoltageOutput+–
Terminal Functions
TERMINALNAMENO.DESCRIPTION
GND1Ground (substrate). All voltages are referenced to GND.OUT3Output voltageVDD2Supply voltaget
t
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972) 673-0759321
OUTVDDGNDPACKAGE(FRONT VIEW)TSLB257, TSLG257, TSLR257
HIGHĆSENSITIVITY COLOR
LIGHTĆTOĆVOLTAGE CONVERTERS
TAOS027B – MARCH 2002
2t
tCopyright E 2002, TAOS Inc.The LUMENOLOGYr Company
www.taosinc.comAbsolute 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 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 240°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is notimplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1:All voltages are with respect to GND.
Recommended Operating ConditionsMINMAXUNITSupply voltage, VDD2.75.5VOperating free-air temperature, TA070°CTSLB257, TSLG257, TSLR257
HIGHĆSENSITIVITY COLORLIGHTĆTOĆVOLTAGE CONVERTERS
TAOS027B – MARCH 2002
3The LUMENOLOGYr Companyt
tCopyright E 2002, TAOS Inc.
www.taosinc.comElectrical Characteristics at VDD = 5 V, TA = 25°C, RL = 10 kΩ (unless otherwise noted) (see Notes2 and 3)TESTCONDITIONSTSLB257TSLG257TSLR257PARAMETERTEST CONDITIONSMINTYPMAXMINTYPMAXMINTYPMAXUNIT
VDDark voltageEe = 0015015015mV
Maximum output voltageVDD = 4.5 V, No Load4.494.494.49VOMMaximum outut voltageswingVDD = 4.5 V, RL = 10 kΩ44.244.244.2V
Ee = 1.7 µW/cm2, λp = 470 nm, Note 41.322.7
VOOutput voltageEe = 1.6 µW/cm2, λp = 524 nm, Note 51.322.7V
Ee = 1.1 µW/cm2, λp = 635 nm, Note 61.322.7
αVDTemperature coefficientof dark voltage (VD)TA = 0°C to 70°C–15–15–15µV/°C
λp = 470 nm, see Notes 4 and 71.180.350.09
Irradianceresponsivityλp = 524 nm, see Notes 5 and 70.531.250.14V/ReIrradiance responsivityλp =565 nm, see Notes 7 and 80.091.170.36(µW/cm2)
λp = 635 nm, see Notes 6 and 70.050.141.82
λp = 470 nm, see Notes 4 and 71.570.470.12
Illuminanceresponsivityλp = 524 nm, see Notes 5 and 70.100.240.027RVIlluminance responsivityλp = 565 nm, see Notes 7 and 80.0150.200.06V/Ix
λp = 635 nm, see Notes 6 and 70.0330.0931.21
PSRRPower supply rejectionfac = 100 Hz, see Note 10555555yjratiofac = 1 kHz, see Note 10353535dB
IDDSupply currentVO = 2 V (typical)1.93.51.93.51.93.5mA
