Ultra-low lux digital ambient light sensor offers light sensitivity benefits

Ultra-low lux digital ambient light sensor offers light sensitivity benefits

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By eeNews Europe

The ISL29033 is ideal for 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 low – the typical current consumption is 55 uA in operation and 0.01 uA in shutdown. The ISL29033, which is packaged in a 6-lead 2.0 mm x 2.1 mm x 0.7 mm ODFN, 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.     

The device’s performance closely matches human eye spectral response with excellent IR and UV rejection.  The ISL29033’s simple linear output code is directly proportional to lux.  The device offers adjustable sensitivity up to 520 counts per lux.           

The device is ideal for display and keypad dimming adjustment for smartphones, personal navigation devices, notebooks, tablets, LCD TVs, digital picture frames, digital cameras as well as industrial and medical light sensing.     

Availability and Pricing     

The ISL29033 is currently available in a 6-lead 2.0 x 2.1 mm ODFN package, with prices starting at $1.31 each in 1,000-unit quantities.      

More information about the ISL29033 ambient light sensor at

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