NOA1212: Ambient Light Sensor with Dark Current Compensation

The NOA1212 is a very low power ambient light sensor (ALS) with an analog current output and a power down mode to conserve power. Designed primarily for handheld device applications, the active power dissipation of this chip is less than 8 uA at dark and its quiescent current consumption is less than 200 pA in power down mode. The device can operate over a very wide range of voltages from 2V to 5.5V. The NOA1212 employs proprietary CMOS image sensing technology from ON Semiconductor, including built-in dynamic dark current compensation to provide large signal to noise ratio (SNR) and wide dynamic range (DR) over the entire operating temperature range. The photopic optical filter provides a light response similar to that of the human eye. Together the photopic light response and dark current compensation insures accurate light level detection

Features
  • Photopic light response
  • Dark current compensation
  • ~0 lux to over 100K lux range
  • Power down mode
  • Selectable gain ranges
  • Less than 8uA power at 0 lux
  • Linear response over full range
Benefits
  • Display power savings
  • Excellent SNR and DR
  • Operation from dark to full sun
  • Extends battery life
  • High small step accuracy
Applications
  • Display power management
End Products
  • Cell phones, PDAs, MP3 players, GPS
  • Internet Mobile Devices (IMD)
  • Cameras, video recorders
  • Mobile devices with displays or backlit keypads
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Ambient Light Sensor with Dark Current CompensationNOA1212/D (103kB)3Nov, 2015
Package Drawings (1)
Document TitleDocument ID/SizeRevision
CUDFN6 1.6x1.6, 0.5P505AL (26.1kB)O
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NOA1212CUTAGActivePb-free Halide freeCUDFN-6505AL3Tape and Reel2500Contact BDTIC
Specifications
ProductIOTyp (µA)Output InterfaceVin Min (V)Vin Max (V)TA Min (°C)TA Max (°C)
NOA1212CUTAG64Analog25.5-4085
Ambient Light Sensor with Dark Current Compensation (103kB) NOA1212
CUDFN6 1.6x1.6, 0.5P NOA1213
NOA1212