ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

TCS37727 Color Sensor

Color light-to-digital converter with proximity sensing, I2C = 1.8V interface


The TCS3772 device family provides red, green, blue, and clear (RGBC) light sensing and, when coupled with an external IR LED, proximity detection. These devices detect light intensity 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 short distance detection, such as in a cell phone, for detecting when the user positions the phone close to their ear. An internal state machine provides the ability to put the device into a low power state in between proximity and RGBC measurements providing very low average power consumption.  This data is transferred via an I2C to the host.

Key Features

  • Integrated RGB and proximity sensor
  • Programmable color sensing and proximity detection
  • Integrated IR blocking filter
  • 3.8M:1 dynamic range

Key Benefits

  • Single device reduces board space
  • Enables flexible operation for wide range of applications
  • Enables accurate color and ambient light sensing under varying lighting conditions
  • Enables operation within wide range of lighting conditions

Product Facts

Supply Voltage [V] 2.7 - 3.6
I²C Bus 1.8V
Programmable Gain, Integration Time, Interrupt, With IR filter
Integrated Capabilities ALS, Color Sensing
Recommended Operating Distances < 15 cm, < 46 cm, < 1 m
Temperature Range [°C] -30 to 70
Packages FN, Pin Count 6