TRS1722 Datasheet | TAOS

Description The TRS1722, TRS1755, and TRS1766 are high-sensitivity reflective color sensors in red (630 nm), green (567 nm), and blue (470 nm) - respectively - with light-to-voltage converters. Each device consists of a colored LED light source, a photodiode light sensor with matching optical color filter, a transimpedance amplifier, and on-board signal conditioning. Output voltage is directly proportional to the reflected light intensity on the photodiode plus any ambient light (which may be considered noise). Functional Block Diagram LED Anode External ÇÇÇÇÇÇÇÇReflecting Surface - + Voltage Output The LUMENOLOGYr pany t Texas Advanced Optoelectronic Solutions Inc. 800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972t) 673-0759 .taosinc. Copyright E 2002, TAOS Inc. 1 TRS1722, TRS1755, TRS1766 HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTĆTOĆVOLTAGE CONVERTERS TAOS034 - NOVEMBER 2002 Terminal Functions TERMINAL NAME NO. ANODE DESCRIPTION Ground. LED cathode and sensor ground. All voltages are referenced to GND. LED anode drive input Output voltage Supply 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 m A Duration of short-circuit current at (or below)...