Ultra-Low Lux Digital Ambient Light Sensor
Intersil Corporation has released an ultra-low lux ambient light sensor, the ISL29033. With linear sensitivity down to 0.0019 lux, the ISL29033 is believed to be ideal for very low light applications such as light sensing behind dark glass and industrial design-challenging applications where typical light sensors have insufficient sensitivity (i.e. indirect light applications).
The ISL29033 includes a lux range select feature that allows users to program the lux range for optimized sensitivity. Power consumption is extremely low - the typical current consumption is 55uA in operation and 0.01uA in shutdown. The ISL29033 provides a hardware interrupt that remains asserted until the host clears it through the I2C interface. The function of ADC conversion continues without stopping after interrupt is asserted.
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