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Digital Ambient Light Sensor

Reduces Time-to-Market and Provides Flexibility

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

Technical Docs

Data Sheet Digital Ambient Light Sensor Jul 03, 2012

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Key Features

  • Consumes Low Power
    • 5µA Supply Current
    • Interrupt Pin Delivers Efficient Communication
  • High Sensitivity
    • 0.03 Lux Sensitivity
  • Easy to Design
    • 1.7V to 3.6V Supply Voltage
    • Tight Part-to-Part Variation
  • Reliable Light Sensing
    • Perfect Rejection of 50Hz/60Hz Noise
    • Adjustable Visible and Infrared Sensor Gain
  • Tiny, 2mm x 2mm x 0.6mm OTDFN Package
  • -40°C to +105°C Temperature Range

Applications/Uses

  • Digital Lighting Management
  • Displays, TVs, Projectors
  • Industrial Automation
  • Medical Devices
  • Tablets and Netbooks

Description

The MAX44004 is a wide dynamic range, low-power ambient light sensor (ALS) ideal for many light sensing applications: tablets, displays, accessories, medical devices, and light management systems.

The on-chip ambient sensor has the power to measure the exact visible light from 0.03 lux to 65,000 lux and communicate through an I²C digital communication bus. The IC has patented sensors, filters, and circuitry to mimic the human eye response. With on-chip calibration registers, it performs the same in different light conditions (i.e., fluorescent, incandescent). The interrupt pin minimizes the need of constant polling of the device, freeing up microcontroller resources for efficient communication and thus reducing overall power consumption. The part-to-part matching is optimized by proprietary Maxim process to speed up end-product development time.

The IC can operate from a VDD of 1.7V to 3.6V, including both supply and I²C times. It consumes just 5µA operating current.

Simplified Block Diagram

MAX44004: Typical Application Circuit MAX44004: Typical Application Circuit Zoom icon

Technical Docs

Data Sheet Digital Ambient Light Sensor Jul 03, 2012

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .