New Sensor for Detecting UVB and Ambient Light in Mobile Applications

Integrated Device Technology, Inc.® (IDT®) (NASDAQIDTI) today introduced an optical sensor that accurately detects UVB and ambient light. Like the recently announced ZOPT2202, the two-channel ZOPT2201 offers new health and wellness capabilities for wearables and other mobile technology, but also features the ability to measure light for screen controls. Developed by engineers at recently acquired Zentrum Mikroelektronik Dresden AG (ZMDI®), the new device with patented infrared light suppression can deliver ultra-accurate high-performance UVB and ambient light sensing (ALS).

IDT“This new sensor integrates two key features that can deliver exciting consumer experiences for cutting-edge mobile products like wearables and smartphones,” said Uwe Guenther, product line director, Mobile Sensing, atIDT. “UVB detection is key for managing the health risks associated with sunlight, and the ALS technology’s ability to accurately measure the intensity of ambient light assists in saving battery life by controlling display brightness. The tight integration of these capabilities helps developers create a more full-featured product while minimizing the bill of materials.”

The sensor also supports “contextual awareness” in multi-sensor systems by detecting indoor/outdoor conditions.

The global market for mobile sensing solutions is expected to see strong growth with as many as 2.3 billion optical sensors projected by 2018. IDT’s new UVB/ALS module is the latest product in the company’s portfolio of leading environmental sensing solutions for the mobile industry.

The ZOPT2201 sensor is available in a compact LGA6 (2.0×2.2×0.7mm) package.

Key Features of the ZOPT2201

  • High UV sensitivity down to 0.022 µW/cm2 per count
  • Ultra-low VIS/IR sensitivity through advanced packaging technology (patent pending)
  • Integrated ALS spectrum that closely matches human eye response for high lux accuracy over different light sources
  • Very stable spectral response over angle of light incidence
  • Absolute sensitivity: 0.008 lux to 157,000 lux
  • Linear UV Index measurement (1 to >11) with an accuracy of ±1 UVI
  • Tailored temperature compensation
  • 50Hz/60Hz light flicker immunity
  • Fluorescent light flicker immunity

Key Applications for Smart Phone and Wearable Platforms

  • Detection of overexposure and underexposure to the sun’s UV rays
  • Adjustment of display according to the ambient light
  • Indoor and outdoor contextual awareness

About IDT

Integrated Device Technology, Inc. develops system-level solutions that optimize its customers’ applications. IDT’s market-leading products in RF, timing, wireless power transfer, serial switching and interfaces are among the company’s broad array of complete mixed-signal solutions for the communications, computing, consumer, automotive and industrial segments. Headquartered in San Jose, Calif., IDT has design, manufacturing, sales facilities and distribution partners throughout the world. IDT stock is traded on the NASDAQ Global Select Stock Market® under the symbol “IDTI.” Additional information about IDT is accessible at

Source: IDT