Press Releases

July 19, 2021

Sharp Begins Mass Production of Ultra-Compact Proximity Sensor*1 for Wearable Devices

Industry’s smallest-in-class package size*2 with I2C*3 communication support

GP2AP130S00F proximity sensor (left), size comparison with a grain of rice

Sharp Fukuyama Semiconductor Co., Ltd. (head office: Fukuyama City, Hiroshima Prefecture; President: Shuichi Katayama) has developed the GP2AP130S00F proximity sensor, the industry’s smallest in class for wearable devices that supports the I2C communication protocol. Mass production began in May 2021.

The wearable device market is a growing field that includes TWS*4 earbuds used with smartphones, as well as VR goggles and smart glasses that are expected to enter widespread use in the future, and devices equipped with biometric information monitoring functions. These devices are increasingly adopting proximity sensors that automatically detect attaching and removing the device to enable control such as pausing music playback, without the need for a physical switch. Against this backdrop, there is an increasing need for miniaturization of proximity sensors to provide greater freedom in the design of wearable devices.

This sensor features the industry’s smallest-in-class body size based on Sharp’s packaging technology and optical signal processing technology refined over many years of optoelectronic device development. In addition, its low current consumption design with an average current consumption of 40 μA*5 (typ.) enables long-duration operation on battery power. And a proprietary ambient light noise canceling circuit*6 eliminates operational faults even in outdoor environments*7 where infrared wavelengths constitute a significant component of the light, for example, under natural sunlight.

Sharp will continue to develop non-contact sensing technology for a wider range of applications and contribute to the creation of new value.

Product name

Proximity sensor

Model name


Sample price (tax included)

100 yen

Start of mass production

May 2021

Monthly production

3 million units

■ Main Features

1. Ultra-compact, low-current-consumption design makes it easy to incorporate into a variety of wearable devices.
2. Automatically detects attachment/removal to/from the ear, etc., enabling control of wearable devices without switch operation.
3. High tolerance to ambient light; can be used outdoors without concern of operational faults

*1 Sensor with an integrated light receiving and emitting element that emits infrared light to detect when an object is in proximity.

*2 For proximity sensors. As of July 19, 2021, based on Sharp research.

*3 A standard for synchronous serial communication that uses two signal lines to communicates data.

*4 True Wireless Stereo

*5 Total current consumption of the circuit section (LSI) and light emitting section (VCSEL).

*6 Patent no. 5823624 and patent no. 6072928.

*7 Demonstration environment: Under sunlight at 100,000 lux intensity.

■ Specifications


Specification value

External dimensions (W x D x H)

1.75 × 1.0 × 0.35 mm

Supply voltage

1.7 to 3.6 V (circuit section)
2.7 to 3.6 V (light emitting section)

Average current consumption*5

Typ. 40 μA

Communication interface (output format)

I2C(supports 2-channel addressing)

Detection distance

Typ. 40 mm

Peak sensitivity wavelength (IR VCSEL)

Typ. 940 nm

Operating temperature

–20 to +85 ℃

■ Inquiries from corporate customers should be directed to:

   Product Planning Department, Semiconductor Division, Sharp Fukuyama Semiconductor Co., Ltd.

Back to top