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

TSL27723 Ambient Light Sensor

Light-to-digital converter with proximity sensing, I2C Vbus = 1.8V interface


The TSL2772 device family provides both ambient light sensing (ALS) and, when coupled with an external IR LED, proximity detection. The device family is based on the patented dual-diode technology that enables accurate ALS results and approximates human eye response to light intensity under a variety of lighting conditions.

Key Features

  • Patented dual-diode architecture
  • 8M:1 dynamic range 
  • UV-rejection package
  • Proximity offset adjustment 
  • Proximity saturation indicator bit

Key Benefits

  • Enables operation in IR light environments
  • Enables operation in 60K lux sunlight and accurate sensing behind spectrally distorting materials
  • Improves lux accuracy across varying light sources
  • Compensates for internal system offset or IR LED crosstalk
  • Prevents false proximity detection in bright light 

Product Facts

Supply Voltage [V] 2.4 - 3.6
I²C Bus 1.8
Programmable Gain, Integration Time, Interrupt
Integrated Capabilities ALS, Prox, LED Drvr.
Recommended Operating Distances < 15 cm, < 46 cm
Temperature Range [°C] −30 to 70
Packages FN, Pin Count 6

Additional Information

  • Display backlight control
  • Touchscreen control
  • Medical diagnostics
  • Industrial process control
  • Printer paper alignment and detection