September 2007

Rev 1

1/16

16

LIS331AL

MEMS inertial sensor:

3-axis - ±2g analog output “nano” accelerometer

Features

■

ratiometric to the supply voltage

Applications

Description

The LIS331AL is the smallest consumer low-

power three-axis linear accelerometer that

includes a sensing element and an IC interface

able to take the information from the sensing

element and to provide an analog signal to the

external world.

The sensing element, capable of detecting the

acceleration, is manufactured using a dedicated

process developed by ST to produce inertial

sensors and actuators in silicon.

The IC interface is manufactured using a CMOS

process that allows high level of integration to

design a dedicated circuit which is trimmed to

better match the sensing element characteristics.

The LIS331AL is capable of measuring

accelerations over a maximum bandwidth of

2.0kHz. The device bandwidth may be reduced by

using external capacitances. A self-test capability

allows the user to check the functioning of the

system.

The LIS331AL is available in Land Grid Array

package (LGA) and it is guaranteed to operate

over an extended temperature range of -40°C to

+85°C.

Note:

Tape & Reel parts are compliant to International Standard EIA-481.

LGA 16 (3x3x1.0mm)

Table 1.

Device summary

Order code

Temp range,

° CPackage

Packing

LIS331AL

-40°C to +85°C

LGA-16

Tray

LIS331ALTR

-40°C to +85°C

LGA-16

Tape & Reel

www.st.com