Preliminary data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

November 2010

Doc ID 18171 Rev 1

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LPS001WP

MEMS pressure sensor

300-1100 mbar absolute digital output barometer

Features

compensation

Applications

Description

The LPS001WP is an ultra compact absolute

piezoresistive pressure sensor. It includes a

monolithic sensing element and an IC interface

able to take information from the sensing element

and to provide a digital signal to the external

world.

The sensing element consists of a suspended

membrane realized inside a single mono-silicon

substrate. It is capable of detecting pressure and

is manufactured using a dedicated process

developed by ST, called

VENSENS.

The

VENSENS process allows the building of 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

intrinsic mechanical stoppers.

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 LPS001WP is available in a small plastic land

grid array (HCLGA) package 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.

The LPS001WP belongs to a family of products

suitable for a variety of applications.

HCLGA-8L (3x5x1 mm)

Table 1.

Device summary

Part number

Temperature range [°C]

Package

Packing

LPS001WP

-40 to +85

HCLGA-8L

Tray

LPS001WPTR

Tape and reel

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)