TSLG257

t t TSLB257, TSLG257, TSLR257 HIGHĆSENSITIVITY COLOR LIGHTĆTOĆVOLTAGE CONVERTERS TAOS027B – MARCH 2002 D Converts Light Intensity to Output Voltage D Integral Color Filter in Blue, Green, or Red D Monolithic Silicon IC Containing D D D D D D Photodiode, Operational Amplifier, and Feedback Components High Sensitivity Single Voltage Supply Operation Low Noise (200 µVrms Typ to 1 kHz) Rail-to-Rail Output High Power-Supply Rejection (35 dB at 1 kHz) Compact 3-Leaded Plastic Package PACKAGE (FRONT VIEW) 1 2 3 GND VDD OUT Description The TSLB257, TSLG257, and TSLR257 are high-sensitivity low-noise light-to-voltage optical converters that incorporate onboard blue, green, and red optical filters, respectively. These devices combine a photodiode and a 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 a transimpedance gain of 320 MΩ with improved offset voltage stability and low power consumption, and is supplied 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 – + Voltage Output Terminal Functions TERMINAL NAME GND OUT VDD NO. 1 3 2 Output voltage Supply voltage DESCRIPTION Ground (substrate). Al...