The LPS331AP is an ultra-compact absolute piezoresistive pressure sensor with a 260 to 1260 mbar absolute pressure range, 0.020 mbar RMS in high-resolution mode, low power consumption of 5.5 µA in low-resolution mode and 30 µA in high-resolution mode, and a high overpressure capability of 20x full scale. It also features embedded temperature compensation, an embedded 24-bit ADC, selectable ODR from 1 Hz to 25 Hz, SPI and I2C interfaces, a supply voltage of 1.71 to 3.6 V, high shock survivability of 10,000 g, a small and thin package, and ECOPACK® lead-free compliance.
The LPS331AP is an ultra-compact absolute piezoresistive pressure sensor manufactured by STMicroelectronics. It utilizes a proprietary VENSENS process to create a mono-silicon sensing element within a small HCLGA package. The device includes an embedded 24-bit ADC and temperature compensation, providing a digital signal via SPI or I2C interfaces.
| Operating pressure range | 260 to 1260 mbar |
|---|---|
| High-resolution mode current | 30 µA |
| Supply voltage | 1.71 to 3.6 V |
| Operating temperature range | -40 to +85 °C |
| Package dimensions | 3 x 3 x 1 mm |
| Interfaces | SPI and I2C |
The sensor supports an absolute pressure range from 260 to 1260 mbar.
The device features both SPI and I2C interfaces for digital output.
The device operates with a supply voltage between 1.71 V and 3.6 V.