MEMS pressure sensor: 260-1260 hPa absolute digital output barometer

The LPS25H 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 detect pressure and is manufactured using a dedicated process developed by ST.

The membrane is very small compared to the traditionally built silicon micromachined membranes. Membrane breakage is prevented by an intrinsic mechanical stopper.

The IC interface is manufactured using a standard CMOS process that allows a high level of integration to design a dedicated circuit which is trimmed to better match the sensing element characteristics.

The LPS25H is available in cavity and fully molded holed LGA package (HLGA). It is guaranteed to operate over a temperature range extending from -30 °C to +105 °C. The package is holed to allow external pressure to reach the sensing element.

Key Features

  • 260 to 1260 mbar absolute pressure range
  • High-resolution mode: 1 Pa RMS
  • Low power consumption:
    • Low resolution mode: 4 μA
    • High resolution mode: 25 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
  • Embedded FIFO
  • Supply voltage: 1.7 to 3.6 V
  • High shock survivability: 10,000 g
  • Small and thin package
  • ECOPACK® lead-free compliant

Design

Technical Documentation

Product Specifications
Description Version Size
DS9284 DS9284: MEMS pressure sensor: 260-1260 hPa absolute digital output barometer 5.0 1 MB
Application Notes
Description Version Size
AN4503 AN4503: Environmental sensors: Hardware abstraction layer for Android 3.0 241 KB
AN4450 AN4450: Hardware and software guidelines for use of LPS25H pressure sensor 2.0 590 KB
Technical Notes & Articles
Description Version Size
TN1227 TN1227: How to interpret pressure and temperature readings in the LPS25H pressure sensor 1.0 182 KB
TN1198 TN1198: Surface mount guidelines for MEMS sensors in HLGA packages 1.0 128 KB

Presentations & Training Material

Presentations
Description Version Size
LPS25HB vs LPS25H: How to upgrade to LPS25HB 1.0 194 KB

Publications and Collaterals

Brochures
Description Version Size
MEMS and Sensors, Smart solutions for IoT and enhanced user experience 1 MB

Tools and Software

Ecosystems
Embedded Software
Evaluation Tools
STM32 Open Development Environment
MEMS and Sensors Software
Product Evaluation Tools
Solution Evaluation Tools

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
LPS25H HCLGA-10L 2.5 X 2.5 Tray NRND - - NEC EAR99 - MORE INFO
LPS25HTR HCLGA-10L 2.5 X 2.5 Tape And Reel NRND - - NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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**
LPS25H NRNDHCLGA-10L 2.5 X 2.5IndustrialEcopack2 0 0
LPS25HTR NRNDHCLGA-10L 2.5 X 2.5IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com 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.

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