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Sensor Hub Partner – Intersil Corporation


Intersil Logo
Sensor Hub Expertise:  Sensor Hub
Application:Light Sensor

Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The Company's products address some of the largest markets within the industrial and infrastructure, personal computing and high-end consumer markets. For more information about Intersil or to find out how to become a member of our winning team, visit the website at


Product Information

Name:  ISL2912X- Digital Red, Green, and Blue Color Light Sensor with IR Blocking Filter

The ISL2912X is a low-power, high-sensitivity, integrating RED, GREEN, and BLUE (RGB) light sensor with an I2C (SMBus compatible) interface. Its state-of-the-art photodiode array provides an accurate RGB spectral response, and low light source to light source variation (LS2LS). The ISL2912X is designed to reject IR (infrared) present in all types of light sources. This allows the device to operate in environments from sunlight to dark rooms and anything in between. Because of its wide dynamic range and IR-rejecting capabilities, the device is ideal for short distance detection behind dark glass such as in cell phone or tablets.


Block Diagram



The Atmel Sensor Hub enables customers to easily integrate various sensors to enhance user experience and improve application features. ISL29125 is the newest RGB sensor from Intersil, which allows display color and brightness adjustment based on ambient illumination conditions. In addition, it offers the ability to support ALS behind colored glass for unique industrial designs, and camera functionality enhancement including illuminant estimation for auto white balance assist or shutter lag reduction. ISL29125 was easily integrated to the Atmel Sensor Hub Solution through the company's easy-to-use embedded development tool set.



  • 8μA operating current, 0.3μA shutdown current
  • Sensitivity 0.005 Lux/count
  • I2C (SMBus compatible) output
  • ADC resolution of 16-bits
  • Programmable interrupt windows
  • Two optical sensitivity ranges
  • Operating power supply 2.25 to 3.63V
  • I2C operating power supply 1.7V to 3.63V
  • Package 6-lead ODFN

Product Advantages

  • Small form factor package: 6-lead ODFN
  • Excellent CCT (correlated color temperature) accuracy across various light sources


Company:   Intersil Corporation
Address: 1001 Murphy Ranch Road
Milpitas, CA 95035 USA
Phone: +1 240-386-0600