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Protect wearables from the most extreme outdoor conditions


MS pressure sensor: 300-1200 hPa absolute digital output barometer with potted gel package.


The LPS33K is a waterproof MEMS pressure sensor featuring a 300-1200 hPa absolute digital output barometer. Its robust, ultra-compact, potted gel package makes it suitable for water-friendly applications. The device comprises a sensing element and an IC interface which communicates through I²C 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 LPS33K 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 harsh environmental conditions.

Key Features

  • Pressure sensor with potted gel package

  • 300 to 1200 hPa absolute pressure range

  • Current consumption down to 4 µA

  • High overpressure capability: 20x full scale

  • Embedded temperature compensation

  • 24-bit pressure data output

  • 16-bit temperature data output

  • ODR from 1 Hz to 75 Hz

  • I²C interfaces

  • Supply voltage: 1.7 to 3.6 V

  • ECOPACK lead-free compliant

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