Products
CM32181E Low Power, High Sensitivity I2C Ambient Light Sensor
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 average current 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.
* Filtron™ technology provides the best spectral sensitivity to match human eye responses.
* O-Trim™ technology provides ALS output tolerance within ± 10%
* High ALS sensitivity with minimum detectable intensity of 0.005 Lux/Bit
supports low transmittance lens design
* Low power mode allows for active average current consumption of 2uA
* Excellent temperature compensation: -40 to 85°C
* High dynamic detection resolution
* Standard I2C protocol interface
* Interruption feature (INT) support
Programmable interrupt function with upper and lower thresholds.
Adjustable persistence to prevent false triggers.
* Fluorescent light flicker immunity
* Software shutdown mode control
* Operation voltage from 2.5V to 3.6V
* Ambient light strength detection range over 100K Lux
Package:
OPLGA (2.35 x 1.8 x 1 mm)
UOPLGA (2.35 x 1.8 x 0.6 mm)
* Lead-free package (RoHS compliant)
