登山运动手表 户外运动手表等使用的ST压力传感器LPS331AP

Lps331ap是一款将压力传感器和模数转换器集成于一体的数字气压测量模块。该模块小体积(3*3*1mm)，数字输出更有利于产品设计。比传统的mV输出的模拟气压传感器在产品设计中减少了系统放大电路的处理，从而节约了产品成本和占有空间。并且该模块输出的数字信号通过I2C/SPI接口直接与微处理器通信。产品出厂前已经过校准，使用中无需再进行校准。 Lps331ap是一款同时测量气压和温度的传感器，在设计中根据气压、温度及高度的换算公式，通过软件处理也可用来做高度测量。产品小体积，低功耗、高分辨率、*得特点，使得其在各个领域中得到了广泛应用

测量压力范围：260…1260mbar

工作温度：-40℃… 85℃；

*小体积:3*3*1mm；

*精度:1m或0.1mBar

可测大气压及温度,温度精度为0.1度

有I2C或SPI输出可选

Features;
■ Piezoresistive pressure sensor
■ 260-1260 mbar absolute pressure range
■ Low power consumption
■ Low noise (0.02 mbar RMS)
■ 25 cm resolution
■ Embedded offset and span temperature
compensation
■ SPI and I
2C interfaces
■ Supply voltage 1.8 V to 3.6 V
■ High overpressure capability: 20x Full scale
■ High shock survivability (10000 g)
■ Small and thin package
■ ECOPACK® Lead-free compliant
Applications
■ Altimeter and barometer for portable devices
■ GPS applications
■ Weather station equipment
The sensing element consists of a suspended
membrane realized inside a single mono-silicon
substrate. It is capable to detecting pressure and
is manufactured using a dedicated process
developed by ST, called VENSENS.
The VENSENS process allows to build a mono-
silicon membrane above an air cavity with
controlled gap and defined pressure.
The membrane is very *all compared to the
traditionally built silicon micromachined
membranes. Membrane breakage is prevented by
intrinsic mechanical s*pers.
The IC interface is manufactured using a standard
CMOS process that allows a high level of
integration to design a dedicated circuit which is
HCLGA-16 3x3x1 mm HCLGA-16 3x3x1 mm