Low Light Ambient Light Sensor
Intersil Corporation, introduced an automotive qualified ambient light sensor that can measure incident light levels down to 0.01 lux with near human eye spectral response.
The ISL76671 is the industry’s first low light ambient light sensor (ALS) that operates within the automotive temperature range of -40 degrees C to 105 degrees C, guaranteeing reliable performance without external temperature compensation. The sensor features internal temperature compensation, fast 30 millisecond response time and excellent infrared (IR) rejection. The ALS operates from a 1.8V to 3.0V supply with an ultra-low operating current of less than 4uA, and its voltage output can be connected directly to an ADC without buffering.
Available in a small 2.1mm x 2.1mm package, the ISL76671 is an ideal solution for light detection behind darkened glass and plastic bezels in a wide range of light-based control applications. The ultra-low light sensitivity (0.01 lux) enables excellent nighttime performance. (As a reference, the illumination from the full moon is typically from 0.25 to 1 lux, depending on location.)
Features and Specifications
- Light sensitivity down to 0.01 lux (range set by an external resistor)
- Near human eye spectral response with excellent IR rejection
- Voltage output can connect directly to ADC
- AEC-Q100 qualified for operation over the -40C to 105C temperature range
- 30ms response time responds to rapidly changing light conditions such headlamps, tunnels and shadows
- Small 2.1mmx 2.1mm package permits optimal placement of sensor
Pricing and Availability
The ISL76671 is assembled in a tiny 2.1mm x 2.1mm OFDN package with prices starting at $0.85 in 1,000-piece units. For more information please visit http://www.intersil.com/auto/new_products.asp#ISL76671