DATASHEET
ISL29023 FN6691
Rev 4.00
May 1, 2014 Integrated Digital Light Sensor with Interrupt
The ISL29023 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 90ms and is user adjustable
from 11Вµs to 90ms, depending on oscillator frequency and
ADC resolution. In normal operation, typical current
consumption is 70ВµA. 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. Range selection via I2C …