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LPS22HBTR

LPS22HBTR

STMicroelectronics
Small digital pressure sensor alternative with an I2C/SPI interface and strong vendor support.
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Overview

The LPS22HBTR is an ultra-compact piezo-resistive absolute pressure sensor that functions as a digital output barometer. It features a 260 to 1260 hPa absolute pressure range with 24-bit resolution and a high shock survivability of 22,000 g. The device is housed in a 10-pin HLGA package and communicates via I2C or SPI interfaces while drawing as little as 3 microamps in run mode.

Why Choose This Part

This sensor offers excellent power efficiency with a 1 uA shutdown current and integrated temperature compensation to ensure stability across its -40 to 85 degrees Celsius operating range. The embedded FIFO buffer reduces system power consumption by allowing the host processor to remain in sleep mode longer during data acquisition.

Applications

Altimeter and Barometer
Used in portable electronics and sport watches to provide accurate altitude and weather data.
GPS Dead Reckoning
Enhances GPS vertical position accuracy in urban canyons or environments with poor satellite visibility.
Weather Stations
Provides precise atmospheric pressure monitoring for localized environmental sensing equipment.
Industrial Equipment Monitoring
Integrated into board-mount systems for pressure tracking in environments requiring high shock resistance.

Key Specifications

Output 24 b
Accuracy +/-0.015PSI (+/-0.1kPa)
Features Temperature Compensated
Port Style No Port
Output Type I2C, SPI
Applications Board Mount
Mounting Type Surface Mount
Pressure Type Absolute
Package / Case 10-WFLGA
Maximum Pressure 290.08PSI (2000kPa)
Voltage - Supply 1.7V ~ 3.6V
Termination Style SMD (SMT) Tab
Operating Pressure 3.77PSI ~ 18.27PSI (26kPa ~ 126kPa)
Operating Temperature -40degC ~ 85degC
Supplier Device Package 10-HLGA (2x2)

Getting Started

Designers can evaluate the sensor using the STEVAL-MET001V1 adapter board which interfaces with the STEVAL-MKI109V3 motherboard. Software support is provided through ST's standard C drivers available on GitHub and integrated within the X-CUBE-MEMS1 expansion software for the STM32Cube environment.

Also Consider

BME280 Bosch Sensortec - Includes integrated humidity and temperature sensors in the same package for more comprehensive environmental sensing.
LPS25HBTR STMicroelectronics - An alternative in the ST barometer family that provides a similar interface for projects with different package footprint requirements.
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