DATASHEET
ISL29034 FN8370
Rev 2.00
August 19, 2016 Integrated Digital Light Sensor
The ISL29034 is an integrated ambient and infrared
light-to-digital converter with I2C (SMBus compatible) interface. Its
advanced self-calibrated photodiode array emulates human eye
response with excellent IR rejection. The on-chip ADC is capable
of rejecting 50Hz and 60Hz flicker caused by artificial light
sources. The Lux range select feature allows users to program the
Lux range for optimized counts/Lux. Features For ambient light sensing, an internal 16-bit ADC has been
designed based upon the charge-balancing technique. The
ADC conversion time is nominally 105ms and is user
selectable from 11Вµs to 105ms, depending on oscillator
frequency and ADC resolution. In normal operation, typical
current consumption is 57ВµA. In order to further minimize
power consumption, two power-down modes have been
provided. If polling is chosen over continuous measurement of
light, the auto power-down function shuts down the whole chip
after each ADC conversion for the measurement. The other
power-down mode is controlled by software via the I2C
interface. The power consumption can be reduced to less than
0.3ВµA when powered down. Shutdown modes . .software and automatic The ISL29034 supports a software brownout condition …
