ams OSRAM TCS3701 Color & Proximity Sensor

ams OSRAM TCS3701 Color and Proximity Sensor features ambient light and color (RGB) sensing in parallel with proximity detection. The device is housed in a low-profile 2.5x2.0x0.5mm package. The Ambient Light and Color Sensing function provides five concurrent ambient light sensing channels: Red, Green, Blue, Clear, and Wideband. The RGB and Clear channels have a UV/IR blocking filter. This architecture accurately measures ambient light. It enables the calculation of illuminance, chromaticity, and color temperature to manage display appearance.


  • Invisible ALS and color sensing under any glass type
  • Configurable, high sensitivity
    • Programmable gain and integration time
    • 1024x dynamic range by gain adjustment only
    • 1mlux minimum detectable illuminance (100ms)
  • Tailored ALS and color response
    • UV/IR blocking filter for RGBC channels
    • Wideband reference channel without filters
  • ALS/color interrupt with thresholds
  • Invisible proximity detection behind OLED displays
  • Capable to drive external IR emitter LED or VCSEL
  • Crosstalk and threshold calibration on chip
  • Programmable timings and sensitivity
  • Calibrated LED output power
  • Low power consumption and minimum I2C traffic
  • 1.8VDD operation
  • Configurable sleep mode
  • Interrupt-driven device
  • On-chip self-calibration of ALS and proximity functions
  • Integrated status checking for all functions
  • Digital and analog ALS saturation flags
  • Proximity saturation flag


  • Brightness management for displays
  • Color management for displays
  • Color temperature sensing to assist backlight, camera, and flash control
  • Ambient light sensing
  • Proximity detection
  • Touch screen disable


Block Diagram

ams OSRAM TCS3701 Color & Proximity Sensor
Published: 2019-03-28 | Updated: 2023-06-23