STMicroelectronics LPS33W MEMS Pressure Sensors

STMicroelectronics LPS33W MEMS Pressure Sensor is ultra-compact and a digital output barometer. The LPS33W combines a sensing element and an IC interface, communicating through I2C or SPI from the sensing element to the application. Detecting absolute pressure, the sensing element consists of a suspended membrane manufactured using a dedicated process developed by ST. The LPS33W is available in a ceramic LGA package with a metal lid and 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, and the gel inside the IC protects the electrical components from harsh environmental conditions.

Features

  • Pressure sensor with potted gel package
  • 260 to 1260hPa absolute pressure range
  • Current consumption down to 3μA
  • High overpressure capability: 20x full scale
  • Embedded temperature compensation
  • 24-bit pressure data output
  • 16-bit temperature data output
  • ODR from 1Hz to 75Hz
  • SPI and I²C interfaces
  • Embedded FIFO
  • Interrupt functions: data-ready, FIFO flags, pressure thresholds
  • Supply voltage: 1.7 to 3.6V
  • ECOPACK® lead-free compliant

Applications

  • Wearable devices
  • Altimeters and barometers for portable devices
  • GPS applications
  • Weather station equipment
  • e-cigarettes

Block Diagram

Block Diagram - STMicroelectronics LPS33W MEMS Pressure Sensors
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