Device combines ambient light sensor, proximity sensor, processor, ADC in one small package

Device combines ambient light sensor, proximity sensor, processor, ADC in one small package

Said to be the first device to combine an IR emitter, PIN photodiode, ambient light detector, signal-processing IC, and 16-bit ADC all in a 3.95 x 3.95 x 0.75-mm leadless surface-mount package the VCNL4000 proximity and ambient light optical sensor aims to simplify designs in a wide variety of applications. By putting all the required circuitry in one device, the sensor eliminates the need for light barriers and optical alignment of the IR emitter and photodiode.

The device’s I2 C bus communication interface simplifies integration into mobile devices such as smartphones, GPS units, and digital cameras, as well as computing and industrial devices and displays. The proximity detection sensor has 16-bit effective resolution to ensure high crosstalk immunity. While other products only achieve object detection up to 100 mm, the sensor’s LED drive current is programmable to 200 mA, allowing detection at distance up to 200 mm.

The device’s ambient light PIN photodiode offers sensitivity close to that of the human eye, with a 16-bit dynamic range for light detection from 0.33 lux to 22 klux. The sensor offers 100- and 120-Hz flicker noise rejection.

Standby current consumption is 1.5 µA, and the supply voltage range is 2.5 to 3.6 V. The I2 C bus voltage range is from 1.7 to 5 V. ($1.20 ea / 1,800 (1 reel) — samples available now, prod qty available in January, with a lead time of 10 weeks for large orders.)

Vishay Intertechnology , Malvern , PA
Information 619-336-0860

http://www.vishay.com/