Miniature Ambient Light Photo Sensor with Digital (I2C) Output

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The APDS-9301 is Light-to-Digital Ambient Light Photo Sensor that converts light intensity to digital signal output capable of direct I2C interface. Each device consists of one broadband photodiode (visible plus infrared) and one infrared photodiode. Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human-eye response.


  • Approximate the human-eye response
  • Precise Illuminance measurement under diverse lighting
  • conditions
  • Programmable Interrupt Function with User-Defined Upper and Lower Threshold Settings
  • 16-Bit Digital Output with I2C Fast-Mode at 400 kHz
  • Programmable Analog Gain and Integration Time
  • Miniature ChipLED Package
  • Height – 0.55mm
  • Length – 2.60mm
  • Width – 2.20mm
  • 50/60-Hz Lighting Ripple Rejection
  • Typical 3.0V Input Voltage
  • Low Active Power (0.6 mW Typical) with Power Down Mode
  • RoHS Compliant


  • Detection of ambient light to control display backlighting
    • Mobile devices – Cell phones, PDAs, PMP
    • Computing devices – Notebooks, Tablet PC, Key board
    • Consumer devices – LCD Monitor, Flatpanel TVs, Video Cameras, Digital Still Cameras
  • Automatic Residential and Commercial Lighting Management
  • Automotive instrumentation clusters
  • Electronic Signs and Signals

Lifecycle Status


Replacement Part

Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Obsolete
Distrib. Inventory Yes
Size (mm) 0.55 (H) x 2.6 (L) x 2.2 (W)
Package 6 pin – ChipLED
Supply Voltage (V) 2.7 - 3.6
Typical Output Current @ 100 Lux (uA) I2C Digital count output
Peak Sensitive Wavelength (nm) N.A.