TCS3104

r r D Three-Channel RGB Color Sensor D Converts Light Intensity to Voltage D Single-Voltage Supply Operation — 4.5 V to 5.5 V D Rail-to-Rail Output D Programmable gain settings: − TCS3103 (2y, 4y) − TCS3104 (4y, 1y) D Low Supply Current — 270 mA Typical D Fast Response Time — Rise Time = 12 ms Typical D Low Dark Offset TCS3103, TCS3104 LIGHT-TO-VOLTAGE COLOR SENSOR TAOS108B − JULY 2010 PACKAGE FN DUAL FLAT NO-LEAD (TOP VIEW) VDD 1 GND 2 MFP 3 6 VOR 5 VOG 4 VOB Description The TCS3103 and TCS3104 RGB Light-to-Voltage Converters combine three photodiodes with optical filters, amplifiers, and gain-switching circuitry on a single chip. The output of each channel is a voltage that is linearly proportional to light intensity (irradiance) on the corresponding photodiode element. Gain is switchable via a digital input pin from 1× to 4× on the TCS3104, and from 2× to 4× on the TCS3103 (as compared to 1× of TCS3104). Each channel on the device consists of a photodiode with a red, green, or blue optical filter, a current-to-voltage converter, and gain control elements. The voltage from each of the red, green, and blue channels is output on the VOR, VOG, and VOB pins, respectively. The single MFP pin controls the gain for all three channels. Each of the three photodiode channels is split into three elements, which are dispersed in a 3 × 3 array. This makes the device less sensitive to non-uniform illumination across the sensing area. The overall photodiode active area is 378 μm × 378...