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Sensor integrates proximity, illuminance in tiny package

Posted: 09 May 2014 ?? ?Print Version ?Bookmark and Share

Keywords:Murata? sensor? proximity? illuminance? photoreceptor?

Murata Europe has revealed a component that integrates both optical proximity and illuminance sensors. Claimed to be the world's smallest, the sensor measures

The surface mounted LT-1PA01 sensor uses a photoreceptor to measure the distance to an object based on the amount of returned light. Another photoreceptor is employed to detect the amount of ambient brightness. Such sensors are widely used in smartphones to darken the screen when the phone is near the user's face during a call or to increase the brightness of the screen's backlight when used outdoor.

The sensor has a low power profile, consuming only 80?A during proximity sensing. Illuminance sensing angle is 45 degrees at 50 per cent, with a sensing distance of up to 70mm with grey card.

The sensor operates at 3.3VDC. It communicates with the host processor via I2C serial communications. The company will begin its volume production this month.

Murata today announced what it believes to be the world's smallest combined proximity and illuminance sensor.


The LT-1PA01 sensor uses photoreceptors to integrate proximity and illuminance functionalities into a footprint package that measures only

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