Barometric pressure sensor

23 April 2014 Analogue, Mixed Signal, LSI

The LPS25H miniature barometric pressure sensor from STMicroelectronics is reportedly winning market share at leading smartphone manufacturers by providing innovative and unique features optimised for mobile applications as well as wearable, industrial and smart-home systems.

Sensors such as this can improve indoor navigation, enabling accurate floor detection and enhanced location-based services. Barometric pressure data also aids dead-reckoning calculations and opens the door to new smartphone apps such as weather analysers and health and sports monitors.

The LPS25H is a MEMS (micro electromechanical system) sensor with features such as enhanced temperature compensation which allows apps to perform consistently in changing environments. In addition, auto-zero capability allows instant accuracy upon entering a building together with additional value-added features like thresholds and interrupts.

The 2,5 x 2,5 x 1 mm sensor has very low operating current of 4 μA to preserve battery life, and an ultra low-noise design that helps ensure accuracy to within ±0,2 mbar.

For more information contact Erich Nast, Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za

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