Overview: ISL29120 NORETCROEMCMOMENMDEENDIDSLER2DE9PF1L2OA5RCNEEMWENDTEPSAIGRNTS Digital Output, Low Power, Red, Green, and Blue Color Light Sensor DATASHEET
FN8314 Rev 0.00 May 29, 2012 The ISL29120 is a low power, high sensitivity, integrated red, green, and blue light sensor with an I2C (SMBus patible) interface. Its state-of-the-art photodiode array provides an accurate red, green and blue spectral response. The ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. A selectable range allows the user to optimize sensitivity suitable for the specific application.
ISL29120 is optimized for sensing red, green and blue light ponents in an non-infrared environment (fluorescent and LED lighting). When operating in infrared rich environments, an external IR blocking filter should be used for accurate measurements.
In normal continuous operation, the ISL29120 power consumption is 70µA, which reduces to 0.3µA in power down mode. In polling mode, the auto-power-down function shuts down most of the device after each ADC conversion.
The ISL29120 supports both hardware and software interrupts. The interrupt thresholds are user programmable. The Interrupt persistency feature reduces false trigger notification.
Designed to operate on supplies from 2.25V to 3.3V and I2C supply from 1.7V to 3.6V, the ISL29120 is specified for operation over the -40°C to +85°C ambient temperature range.
