LIS2L02AS Datasheet, PDF (1/6 Pages) STMicroelectronics – INERTIAL SENSOR: 2Axis - 2g/6g LINEAR ACCELEROMETER

LIS2L02AS
INERTIAL SENSOR:
2Axis - 2g/6g LINEAR ACCELEROMETER
PRODUCT PREVIEW
s 3V TO 5.25V SINGLE SUPPLY OPERATION
s THE SENSITIVITY IS ADJUSTED WITH A
TOTAL ACCURACY OF ±10%
s THE OUTPUT VOLTAGE, OFFSET,
SENSITIVITY AND TEST VOLTAGE ARE
RATIOMETRIC TO THE SUPPLY VOLTAGE
s DEVICE SENSITIVITY IS ON-CHIP FACTORY
TRIMMED
s EMBEDDED SELF TEST
s HIGH SHOCK SURVIVABILITY
DESCRIPTION
The LIS2L02AS is a dual-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 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 LIS2L02AS has a user selectable full scale of 2g,
6g and it is capable of measuring accelerations over
SO-24
ORDERING NUMBER: LIS2L02AS
a maximum bandwidth of 4.0 KHz for both the X and
Y axis. The device bandwidth may be reduced by us-
ing external capacitances. A self-test capability al-
lows the user to check the functioning of the system.
The LIS2L02AS is available in plastic SMD package
and it is specified over a temperature range extend-
ing from -40°C to +85°C.
The LIS2L02AS belongs to a family of products suit-
able for a variety of applications:
– Antitheft systems
– Inertial navigation
– Virtual reality input devices
– Vibration Monitoring, recording and compen-
sation
– Appliance control
– Robotics
BLOCK DIAGRAM
S1X
S1Y
rot
MUX
S2Y
S2X
CHARGE
AMPLIFIER
DEMUX
Routx _Voutx
S/H
Routy _Vouty
S/H
VOLTAGE & CURRENT
REFERENCE
TRIMMING CIRCUIT
&
TEST INTERFACE
CLOCK
&
PHASE GENERATOR
December 2002
1/6
This is preliminary information on a new product now in development. Details are subject to change without notice.