ams TCS37717 Color Sensor



The TCS3771 family of devices provides red, green, blue, and clear (RGBC) light sensing and proximity detection (when coupled with an external IR LED). They detect light intensity under a variety of lighting conditions and through a variety of attenuation materials. The proximity detection feature allows a large dynamic range of operation for use in short distance detection behind dark glass such as in a cell phone or for longer distance measurements for applications such as presence detection for monitors or laptops. The programmable proximity detection enables continuous measurements across the entire range. In addition, an internal state machine provides the ability to put the device into a low power mode in between RGBC and proximity measurements providing very low average power consumption. This data is transferred via an I2C to the host.



  • Integrated RGB and proximity detection
  • Programmable color sensing and proximity detection
  • 1M:1 dynamic range
  • Programmable interrupt function
  • Area efficient 2mm x 2.4mm Dual Flat no-lead (FN) package


  • Single device (module) reduces board space and design effort
  • Enables flexible operation for wide range of applications
  • Enables operation within wide range of lighting conditions
  • Reduces microprocessor interrupt overhead
  • Reduces board space requirements while simplifying designs




Application note

Technical documents

Lifecycle documents