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Description

The LPS331AP is an ultra compact absolute piezoresistive pressure sensor. It includes a monolithic sensing element and an IC interface able to take the information from the sensing element and to provide a digital signal to the external world.

The sensing element consists of a suspended membrane realized inside a single mono-silicon substrate. It is capable to detecting pressure and is manufactured using a dedicated process developed by ST, called VENSENS.

Features

■ 260 to 1260 mbar absolute pressure range

■ High-resolution mode: 0.020 mbar RMS

■ Low power consumption:

– Low resolution mode: 5.5 μA

– High resolution mode: 30 μA

■ High overpressure capability: 20x full scale

■ Embedded temperature compensation

■ Embedded 24-bit ADC

■ Selectable ODR from 1 Hz to 25 Hz

■ SPI and I2C interfaces

■ Supply voltage: 1.71 to 3.6 V

■ High shock survivability: 10,000 g

■ Small and thin package

■ ECOPACK? lead-free compliant

Applications

■ Indoor and outdoor navigation

■ Enhanced GPS for dead-reckoning

■ Altimeter and barometer for portable devices

■ Weather station equipment

■ Sport watches