STMicroelectronics

LPS33WTR MEMS Pressure Sensor for Harsh Environmental Conditions

STMicroelectronics' 260 hPa to 1260 hPa absolute digital output barometer features a potted gel package

Image of STMicroelectronics' LPS33WTR MEMS Pressure SensorSTMicroelectronics' LPS33W is an ultra-compact piezoresistive pressure sensor which functions as a digital output barometer. The device is comprised of a sensing element and an IC interface which communicates through I2C or SPI from the sensing element to the application.

The sensing element detects absolute pressure and consists of a suspended membrane that is manufactured using a dedicated process developed by STMicroelectronics.

The LPS33W is available in a ceramic LGA package with a metal lid. The device operates 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.

Features
  • Pressure sensor with a potted gel package
  • Absolute pressure range: 260 hPa to 1,260 hPa
  • 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: 1 Hz to 75 Hz
  • SPI and I2C interfaces
  • Embedded FIFO
  • Interrupt functions: data-ready, FIFO flags, and pressure thresholds
  • Supply voltage: 1.7 V to 3.6 V
  • ECOPACK® lead-free compliant
Applications
  • Altimeters and barometers for portable devices
  • Weather station equipment
  • Wearable devices
  • GPS applications
  • E-cigarettes
Published: 2019-03-28

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