Light to Digital sensors combine a broadband photodiode (350-1100 nm) with a visible light blocking photodiode and integrated analog-to-digital conversion circuitry in a single IC. Data is output via a serial interface using two standard protocols: SMBus and I2C. Ambient light sensing is a common application - light intensity in Lux (i.e. illuminance) can be easily calculated using the output from both photodiodes without the need of using an expensive optical filter.
Light to Digital sensors can be used in any general application where a high resolution light sensor is required using a two-wire digital interface. This family of devices is ideal for use with notebooks, tablets, flat-panel televisions, cell phones and digital cameras. Other applications include street light control, security lighting, sunlight harvesting, machine vision and automotive instrumentation clusters.