LPS225HB:MEMS pressure sensor: 260-1260 hPa absolute digital output barometer

The LPS225HB is an ultra-compact piezoresistive absolute pressure sensor. It includes a monolithic sensing element and an IC interface which communicates a digital signal from the sensing element to the application.

The sensing element, which detects absolute pressure, consists of a suspended membrane inside a single mono-silicon substrate 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 characteristics of the sensing element.

The LPS225HB is available in a full-mold, holed LGA package (HLGA). 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.

Key Features

  • 26 to 126 kPa absolute pressure range
  • High-resolution mode: 1 Pa RMS
  • Low-power mode: 3.5 Pa RMS
  • Current consumption down to 4 μA
  • High overpressure capability: 20x full scale
  • Embedded temperature compensation
  • Embedded 24-bit ADC
  • 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
  • Small and thin package
  • ECOPACK® lead-free compliant
Product Specifications
DescriptionVersionSize
DS11950: MEMS pressure sensor: 26 - 126 kPa absolute digital output barometer1.01 MB
Technical Notes & Articles
DescriptionVersionSize
TN1198: Surface mount guidelines for MEMS sensors in HLGA packages1.0128 KB
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
LPS225HBTRHLGA 2.5X2X0.8 8LD EXPOSED CHIPTape And Reel--NECEAR99-
LPS225HBHLGA 2.5X2X0.8 8LD EXPOSED CHIPTray--NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
LPS225HBTRHLGA 2.5X2X0.8 8LD EXPOSED CHIPIndustrialEcopack2
LPS225HBHLGA 2.5X2X0.8 8LD EXPOSED CHIPIndustrialEcopack2
MEMS pressure sensor: 26 - 126 kPa absolute digital output barometer LPS225HB
HLGA封装中MEMS传感器的表面贴装指南 HTS221