LPS225HB中文资料MEMS pressure sensor: 260-1260 hPa absolute digital output barometer数据手册ST规格书

描述 Description

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.

特性 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

简介

LPS225HB属于传感器变送器的压力传感器、变送器。由制造生产的LPS225HB压力传感器、变送器压力传感器或变送器用于检测并响应器件上作用力的存在或量变。压力类型有绝对压力、复合压力、差压、表压、密封表压、开关、真空和排气表压，工作压力为 -100 PSI (-689.48 kPa) 至 20000 PSI (137895.15 kPa)。