SGS Thomson Microelectronics LIS2L02AS Datasheet
2Axis - 2g/6g LINEAR ACCELEROMETER
■ 3V TO 5.25V SINGLE SUPPLY OPERATION
■ THE SENSITIVITY IS ADJUSTED WITH A
TOTAL ACCURACY OF ±10%
■ THE OUTPUT VOLTAGE, OFFSET,
SENSITIVITY AND TEST VOLTAGE ARE
RATIOMETRIC TO THE SUPPLY VOLTAGE
■ DEVICE SENSITI VITY IS ON-CHI P FACTORY
TRIMMED
■ EMBEDDED SELF TEST
■ 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 el ement
and to provide an analog signal to the exter nal wor ld.
The sensing element, capable to detect the acceleration, is manufactured using a dedicated process
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 allow s high l evel o f integration to
design a dedicated circuit which is trimmed to better
match the sensing element characteristics.
The LIS2L02AS has a user s electable full scale of 2g,
6g and it is capable of measuring accelerations over
LIS2L02AS
INERTIAL SENSOR:
PRODUCT PREVIEW
SO-24
ORDERING NUMB ER: LIS2L 02AS
a maximum bandwidth of 4.0 KHz for both the X and
Y axis. 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 LIS2L02AS is available in plastic SMD package
and it is specified over a temperature range extending from -40°C to +85°C.
The LIS2L02AS belongs to a family of products suitable for a variety of applications:
– Antitheft systems
– Inertial navigation
– Virtual reality input devices
– Vibration Monitoring, recording and com pen-
sation
– Appliance control
– Robotics
BLOCK DIAGRAM
S1X
S1Y
rot
S2Y
S2X
VOLTAGE & CURRENT
REFERENCE
December 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
MUX
TRIMMING CIRCUIT
TEST INTERFACE
AMPLIFIE R
DEMUX
CLOCK
&
PHASE GENERATOR
S/HCHARGE
S/H
&
Routx
Routy
Voutx
Vouty
1/6
LIS2L02AS
PIN DESCRIPTION
N° Pin Function
1 to 6 NC Internally not connected
7 Reserved Leave unconnected or connect to ground
8 Reserved Leave unconnected or connect to Vdd
9 Reserved Connect to Vdd or ground
10-11 Reserved Leave unconnected or connect to Vdd
12 FS Full Scale selection (Logic 0: 2g Full-scale; Logic 1: 6g Full-scale)
13 NC Internally not connected
14 PD Power Down (Logic 0: normal mode; Logic 1: Power-Down mode)
15 Voutx Output Voltage
16 ST Self Test (Logic 0: normal mode; Logic 1: Self-test)
17 Vouty Output Voltage
18 Vdd Power supply
19 GND 0V supply
20 to 24 NC Internally not connected
PIN CONNECTION
(Top view)
X
13
Y
1
Reserved
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
Reserved
Reserved
Reserved
Reserved
NC
NC
NC
NC
NC
NC
FS
NC
NC
NC
NC
NC
GND
Vdd
Vouty
ST
Voutx
PD
NC
2/6
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