Description
The LPS25HB is a piezoresistive absolute pressure sensor which functions as a digital output barometer. The device comprises a sensing element and an IC interface which communicates through I2C or SPI from the sensing element to the application. The sensing element, which detects absolute pressure, consists of a suspended membrane manufactured using a dedicated process developed by ST. The LPS25HB is available in a full-mold, holed LGA package (HLGA). It is guaranteed to operate over a temperature range extending from -30 to +105 °C. The package is holed to allow external pressure to reach the sensing element. HLGA 10L (2.5 x 2.5 x 0.76 mm typ.)

Features
■ 260 to 1260 hPa absolute pressure range
■ High-resolution mode: 0.01 hPa RMS
■ Low-power consumption – Low-resolution mode: 4 µA – High-resolution mode with FIFO: 4.5 µA
■ High overpressure capability: 20x full scale
■ Embedded temperature compensation
■ 24-bit pressure data output
■ ODR from 1 Hz to 25 Hz
■ SPI and I2C interfaces
■ Embedded FIFO
■ Interrupt functions: Data Ready, FIFO flags, pressure thresholds
■ Supply voltage: 1.7 to 3.6 V
■ High shock survivability: 10,000 g
■ ECOPACK® lead-free compliant

Applications
■ Altimeter and barometer for portable devices
■ Enhanced GPS applications
■ Weather station equipment
■ Wearable devices