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

TMD27723WA Digital Ambient Light Sensor

Digital ambient light sensor, proximity sensor and IR LED in an optical module 1.8V I2C


The TMD2772WA family of devices provides digital ambient light sensing (ALS), a complete proximity detection system, and digital interface logic in a single 8-pin surface mount module. The devices are register-set and pin-compatible with the TMD2771 family of devices and include new and improved ALS and proximity detection features and are available with 25° and 50° fields of view. The ALS enhancements include a reduced-gain mode that extends the operating range in sunlight. Proximity detection includes improved signal-to-noise performance and more accurate factory calibration. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false proximity data measurement readings, a proximity saturation indicator bit signals that the internal analog circuitry has reached saturation.

Key Features

  • Ambient Light Sensing, Proximity Detection, and IR LED in a Single Module
  • Wide variety of programmable features with very High Sensitivity
  • Proximity Detection
  • Maskable ALS and Proximity Interrupt
  • Power Management
  • I²C Fast Mode Compatible Interface
  • 3.94 mm x 2.36 mm x 1.35 mm Package
  • Available with standard 25° (TMD2772) and wide 50° (TMD2772WA)

Key Benefits

  • Minimizes board space requirements
  • Approximates Human Eye Response over a wide variety of lighting conditions
  • Reduces external processor burden
  • Enables dynamic power dissipation control
  • Industry standard two-wire interface
  • Small foot-print module
  • Optimize ambient light sensing angle

Product Facts

Supply Voltage [V] 2.2 – 3.6
I²C Bus 1.8V
Programmable Gain, Integration Time, Interrupt
Integrated Capabilities ALS, Prox, LED Drvr. IR LED
Recommended Operating Distances <15 cm
Temperature Range [°C] -40 to 85
Packages Surface Mount Module, Pin Count 8