TSL2563 light sensor

Approximates Human Eye Response
Programmable Interrupt Function with User-Defined Upper and Lower Threshold Settings
16-Bit Digital Output: SMBus @ 100 kHz (TSL2562) or I2C Fast-Mode @ 400 kHz (TSL2563)
Programmable Analog Gain and Integration Time Supporting 1,000,000-to-1 Dynamic Range
Available in 2 mm X 2 mm Surface Mount Package
Automatically Rejects 50/60-Hz Lighting Ripple
Low 2.5-V Input Voltage and 1.8-V Digital Output
Low Active Power (0.6 mW Typical) with Power Down Mode
RoHS Compliant

The TSL2563 is a second-generation ambient light sensor device. Each contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes. Integration of both channels occurs simultaneously. Upon completion of the conversion cycle, the conversion result is transferred to the Channel 0 and Channel 1 data registers, respectively. The transfers are double-buffered to ensure that the integrity of the data is maintained. After the transfer, the device automatically begins the next integration cycle.