NOA1211

NOA1211 Ambient Light Sensor with Dark Current Compensation Description The NOA1211 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 mA 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 2 V to 5.5 V. The NOA1211 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 http://onsemi.com CUDFN6 CU SUFFIX CASE 505AE PIN ASSIGNMENT VDD VSS GB1 1 2 3 (Top View) 6 IOUT 5 NC 4 GB2 Senses Ambient Light and Provides an Output Current Proportional to the Ambient Light Intensity Photopic Spectral Response Dynamic Dark Current Compensation Two Selectable Output Current Gain Modes Power Down Mode Less than 18 mA at 100 lux Active Power Consumption in Normal Operation (Less than 8 mA at Dark) Less than 200 pA Quiescent Power Dissipation in Power Down Mode at All Light Levels Linear Response Over the Ful...