CM32181E

  CM32181E is a 16-bit low power, high sensitivity CMOS ambient light sensor operated via a simple 
I2C command. The sensor offers an active interruption feature that is triggered outside of the 
threshold window settings eliminating loading on the host. In the low power mode, the active averagecurrent consumption is 2uA.

  CM32181E incorporates a photodiode, amplifiers and analog/digital circuits in a single chip.
Capella's patented Filtron? technology, a wafer level optical filter, provides the best spectral 
sensitivity to match human eye responses. Detectable intensity ranges from 0.005 lux to 167000 lux. The sensor has excellent temperature compensation to maintain output stability under changing 
temperature and its refresh rate setting does not need an external RC low pass filter. There is a
programmable shutdown mode which reduces consumption to 0.5uA.  Operating voltage ranges from 2.5V 
to 3.6V.

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