SGS Thomson Microelectronics LIS2L02AQ 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 LIS2L02AQ 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 LIS2L02AQ has a user selectable full scale of
2g, 6g and it is capable of measuring accelerations
LIS2L02AQ
INERTIAL SENSOR:
PRODUCT PREVIEW
QFN-44
ORDERING NUMBER: LIS2L02AQ
over a maximum bandwidth of 4.0 K Hz for both the X
and Y axis. The device bandwidth m ay be r educed by
using external capacitances. A self-test capability allows the user to check the functioning of the system.
The LIS2L02AQ is available in plastic SMD package
and it is specified over a temperature range extending from -40°C to +85°C.
The LIS2L02AQ 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
LIS2L02AQ
PIN DESCRIPTION
N° Pin Function
1 to 3 NC Internally not connected
4 GND 0V supply
5 Vdd Power supply
6 Vouty Output Voltage
7 ST Self Test (Logic 0: normal mode; Logic 1: Self-test)
8 Voutx Output Voltage
9-13 NC Internally not connected
14 PD Power Down (Logic 0: normal mode; Logic 1: Power-Down mode)
15 NC Internally not connected
16 FS Full Scale selection (Logic 0: 2g Full-scale; Logic 1: 6g Full-scale)
17-18 Reserved Leave unconnected
19 NC Internally not connected
20 Reserved Leave unconnected
21 NC Internally not connected
22-23 Reserved Leave unconnected
24-25 NC Internally not connected
26 Reserved Connect to Vdd or GND
27 Reserved Leave unconnected or connect to Vdd
28 Reserved Leave unconnected or connect to GND
29-44 NC Internally not connected
PIN CONNECTION
(Top view)
1
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
NCNCNCNCNCNCNCNCNCNCNC
Y
NC
NC
NC
GND
X
Vdd
Vouty
ST
Voutx
NC
NC
NC
NC
NCPDNC
LIS2L02AQ
FS
Reserved
Reserved
NC
Reserved
Reserved
Reserved
NC
NC
NC
NC
NC
Reserved
Reserved
Reserved
NC
NC
Reserved
2/6
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