Analog Output Ambient Light Sensor
DATASHEET
ISL29112
Low Power, <100 Lux Optimized, Analog Output Ambient Light Sensor
FN8836 Rev.1.00 May 8, 2017
The ...
Description
DATASHEET
ISL29112
Low Power, <100 Lux Optimized, Analog Output Ambient Light Sensor
FN8836 Rev.1.00 May 8, 2017
The ISL29112 is a low cost, light-to-voltage silicon optical sensor combining a photodiode array, a non-linear current amplifier, and a micropower op amp on a single monolithic IC. Similar to the human eye, the photodiode array has peak sensitivity at 550nm and spans the wavelength range 400nm to 600nm, rejecting UV and IR light. The input luminance range is from 0.01 lux to 100 lux.
The integrated non-linear current amplifier boosts and converts the photodiode signal into a square root output format, extending dynamic range while maintaining excellent sensitivity in dimly lit conditions. As such, the part is ideal for measuring incident daylight when mounted behind heavily smoked bezels used around displays or behind mirrors.
The device consumes minimum power. A dark current compensation circuit minimizes the effect of temperature dependent leakage currents in the absenc...
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