LPS331AP 데이터 시트보기 (PDF) - Unspecified

부품명

상세내역

제조사

LPS331AP

MEMS pressure sensor: 260-1260 mbar absolute digital output barometer

Unspecified 

LPS331AP

MEMS pressure sensor: 260-1260 mbar absolute digital output

barometer

Datasheet −production data

Features

■ 260 to 1260 mbar absolute pressure range

■ High-resolution mode: 0.020 mbar RMS

■ Low power consumption:

– Low resolution mode: 5.5 µA

– High resolution mode: 30 µA

■ High overpressure capability: 20x full scale

■ Embedded temperature compensation

■ Embedded 24-bit ADC

■ Selectable ODR from 1 Hz to 25 Hz

■ SPI and I2C interfaces

■ Supply voltage: 1.71 to 3.6 V

■ High shock survivability: 10,000 g

■ Small and thin package

■ ECOPACK® lead-free compliant

Applications

■ Indoor and outdoor navigation

■ Enhanced GPS for dead-reckoning

■ Altimeter and barometer for portable devices

■ Weather station equipment

■ Sport watches

Description

The LPS331AP is an ultra compact absolute

piezoresistive pressure sensor. It includes a

monolithic sensing element and an IC interface

able to take the information from the sensing

element and to provide a digital signal to the

external world.

Table 1. Device summary

Order codes

Temperature range [°C]

LPS331APY

LPS331APTR

-40 to +85

HCLGA-16L

(3 x 3 x 1 mm)

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 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 sensing element

characteristics.

The LPS331AP is available in a small holed cap

land grid array (HCLGA) package and 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.

Package

HCLGA-16L

Packing

Tray

Tape and reel

March 2012

This is information on a product in full production.

Doc ID 022112 Rev 7

1/36

www.st.com

36

Share Link: