LIS3L02AS Datasheet, PDF (1/7 Pages) STMicroelectronics – INERTIAL SENSOR: 3Axis - 2g/6g LINEAR ACCELEROMETER

LIS3L02AS
INERTIAL SENSOR:
3Axis - 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 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
SO-24
ORDERING NUMBER: LIS3L02AS
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
BLOCK DIAGRAM
S1X
S1Y
S1Z
CHARGE
AMPLIFIER
Routx _Voutx
S/H
rot
MUX
S2Z
S2Y
S2X
DEMUX
Routy _Vouty
S/H
Routz _Voutz
S/H
VOLTAGE & CURRENT
REFERENCE
TRIMMING CIRCUIT
&
TEST INTERFACE
CLOCK
&
PHASE GENERATOR
February 2003
1/7
This is preliminary information on a new product now in development. Details are subject to change without notice.