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LIS3L02AQ

November 2004

1

FEATURES

SENSITIVITY RATIOMETRIC TO THE

SUPPLY VOLTAGE

AND OFFSET

2DESCRIPTION

The LIS3L02AQ is a low-power three-axis linear ac-

celerometer 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 to detect the acceler-

ation, is manufactured using a dedicated process

called THELMA (Thick Epi-Poly Layer for Microactu-

ators and Accelerometers) developed by ST to pro-

duce 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 LIS3L02AQ 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 band-

width may be reduced by using external capacitanc-

es. A self-test capability allows the user to check the

functioning of the system.

The LIS3L02AQ is available in plastic SMD package

and it is specified over a temperature range extend-

ing from -40°C to +85°C.

The LIS3L02AQ belongs to a family of products suit-

able for a variety of applications:

– Motion activated functions in mobile terminals

– Gaming and Virtual Reality input devices

– Free-fall detection and Data protection

– Antitheft systems and Inertial Navigation

– Appliance Control and Robotics

INERTIAL SENSOR:

3Axis - 2g/6g LINEAR ACCELEROMETER

Figure 2. 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

Figure 1. Package

Table 1. Order Codes

Part Number

Package

LIS3L02AQ

QFN-44

QFN-44

Rev. 4