Colour sensor, proximity sensor and IR LED in a  single optical module

Colour sensor, proximity sensor and IR LED in a single optical module

New Products |
ams has introduced two colour-sensing ICs with common features; TMD37821 and TMD37823 integrate digital colour sensor, proximity sensor and IR LED in an optical module with a choice of VDD I2C interface or 1.8V I2C interface.
By eeNews Europe

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The device will perform colour temperature measurement, ambient light sensing (ALS) and proximity detection with background light rejection. The device operates under a variety of lighting conditions and through a variety of attenuation materials, including dark glass. The proximity detection feature allows a large dynamic range of operation for accurate distance detection, such as in a cell phone when the user positions the phone close to their ear. IR LED sink current is factory trimmed to provide consistent proximity response without requiring customer calibration. An internal state machine provides the ability to put the device into a low power state between proximity and RGBC measurements providing very low average power consumption.

Features include; RGB, ambient light sensor (ALS) and proximity support; power management; I2C fast mode interface compatible; integral IR LED; small 8 lead optical module; UV/IR blocking filters; programmable gain and integration time; 1,000,000:1 dynamic range. The device has a circular segmented RGBC photodiode with very high sensitivity; offers background ambient light rejection; and has a programmable current sink for IR LED drive.

ams; www.ams.com

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