TRS1722 Datasheet, PDF (1/10 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – HIGH SENSITIVITY REFLECTIVE COLOR SENSOR WITH LIGHTTOVOLTAGE CONVERTERS

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TRS1722, TRS1755, TRS1766
HIGH SENSITIVITY REFLECTIVE COLOR SENSOR
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WITH LIGHTĆTOĆVOLTAGE CONVERTERS
TAOS034 – NOVEMBER 2002
D Converts Reflected Light Intensity to
Output Voltage
D Integral Color LEDs and Matching Color
Filters on Sensors
D Sensor is a Monolithic Silicon IC
Containing a Photodiode, Operational
Amplifier, Feedback Components, and
Color Filter
D High-Output LEDs and High-Sensitivity
Sensors
D Single Voltage Supply Operation
D Surface-Mount Package
ANODE 1
GND 2
PACKAGE
(TOP VIEW)
4 OUT
3 V_DD
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
ÇÇÇÇÇÇÇÇ Reflecting
Surface
–
+
Voltage
Output
The LUMENOLOGYr Company
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Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972_t) 673-0759
www.taosinc.com
Copyright E 2002, TAOS Inc.
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