The STMicroelectronics LPS33HW is an ultra-compact piezo resistive 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 LPS33HW is available in a ceramic LGA package with metal lid. It is guaranteed to operate over a temperature range extending from -40 °C to +85 °C. The package is holed to allow external pressure to reach the sensing element. Gel inside the IC protects the electrical components from water.

Pressure sensor with water-resistant package
260 to 1260 hPa absolute pressure range
Current consumption down to 3 μA
High overpressure capability: 20x full scale
Embedded temperature compensation
24-bit pressure data output