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LIS3L02AS

February 2003

This is preliminary information on a new product now in development. Details are subject to change without notice.

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3V TO 5.25V SINGLE SUPPLY OPERATION

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THE SENSITIVITY IS ADJUSTED WITH A

TOTAL ACCURACY OF ±10%

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THE OUTPUT VOLTAGE, OFFSET,

SENSITIVITY AND TEST VOLTAGE ARE

RATIOMETRIC TO THE SUPPLY VOLTAGE

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DEVICE SENSITIVITY IS ON-CHIP FACTORY

TRIMMED

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EMBEDDED SELF TEST

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HIGH SHOCK SURVIVABILITY

DESCRIPTION

The LIS3L02AS is a tri-axis linear accelerometer

that includes a sensing element and an IC inter-

face able to take the information from the sensing

element and to provide an analog signal to the ex-

ternal world.

The sensing element, capable to detect the accel-

eration, is manufactured using a dedicated pro-

cess called THELMA (Thick Epi-Poly Layer for

Microactuators and Accelerometers) developed

by ST to produce inertial sensors and actuators in

silicon.

The IC interface instead 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 LIS3L02AS has a user selectable full scale of

2g, 6g and it is capable of measuring accelerations

over a maximum bandwidth of 4.0 KHz for the X

and Y axis and 2.5KHz for the Z axis. The device

bandwidth may be reduced by using external ca-

pacitances. A self-test capability allows the user to

check the functioning of the system.

The LIS3L02AS is available in plastic SMD pack-

age and it is specified over a temperature range

extending from -40°C to +85°C.

The LIS3L02AS belongs to a family of products

suitable for a variety of applications:

– Antitheft systems

– Inertial navigation

– Virtual reality input devices

– Vibration Monitoring, recording and compen-

sation

– Appliance control

– Robotics

SO-24

ORDERING NUMBER: LIS3L02AS

PRODUCT PREVIEW

INERTIAL SENSOR:

3Axis - 2g/6g LINEAR ACCELEROMETER

BLOCK DIAGRAM

DEMUX

S/H

CHARGE

AMPLIFIER

S/H

MUX

S1Y

S1Z

S2Y

S2Z

Voutx

Voutz

Routx

Routz

VOLTAGE & CURRENT

REFERENCE

TRIMMING CIRCUIT

&

CLOCK

&

PHASE GENERATOR

TEST INTERFACE

S/H

Vouty

Routy

rot

S1X

S2X