MEMS pressure sensor: 260-1260 hPa absolute digital output barometer with water resistant package

The LPS33HW is an ultra-compact piezoresistive 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.

Key Features

  • 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
  • 16-bit temperature data output
  • ODR from 1 Hz to 75 Hz
  • SPI and I²C interfaces
  • Embedded FIFO
  • Interrupt functions: data-ready, FIFO flags, pressure thresholds
  • Supply voltage: 1.7 to 3.6 V
  • ECOPACK® lead-free compliant


Technical Documentation

Product Specifications
Description Version Size
DS12100 DS12100: MEMS pressure sensor: 260-1260 hPa absolute digital output barometer with water-resistant package 1.0 1 MB
Application Notes
Description Version Size
AN5063 AN5063: LPS33HW digital pressure sensor: guidelines for system integration 1.0 681 KB
Technical Notes & Articles
Description Version Size
TN1251 TN1251: How to interpret pressure and temperature readings in the LPS33HW pressure sensor 1.0 197 KB
TN1198 TN1198: Surface mount guidelines for MEMS sensors in HLGA packages 1.0 128 KB
Design Notes & Tips
Description Version Size
DT0096 DT0096: LPS33HW digital pressure sensor: hardware guidelines for system integration 1.0 233 KB

Publications and Collaterals

Description Version Size
LPS33HW 10-bar, water-resistant MEMS pressure sensor 1.0 228 KB

Tools and Software

Embedded Software
MEMS and Sensors Software
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
LPS33HW CERAMIC CCLGA 3.3X3.3X2.9 10L Tray Evaluation - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LPS33HW EvaluationCERAMIC CCLGA 3.3X3.3X2.9 10L-Ecopack2 0 0
LPS33HWTR ActiveCERAMIC CCLGA 3.3X3.3X2.9 10L-Ecopack2 0 0

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.