Rev 1
September 2005
CD00068420
1/17
17
LIS2L02AL
MEMS INERTIAL SENSOR:
2-axis - +/-2g ULTRACOMPACT LINEAR ACCELEROMETER
Features
2.4V TO 5.25V SINGLE SUPPLY
OPERATION
LOW POWER CONSUMPTION
2g FULL-SCALE
0.3mg RESOLUTION OVER 100Hz
BANDWIDTH
EMBEDDED SELF TEST
OUTPUT VOLTAGE, OFFSET AND
SENSITIVITY RATIOMETRIC TO THE
SUPPLY VOLTAGE
HIGH SHOCK SURVIVABILITY
ECO-PACK COMPLIANT
Description
The LIS2L02AL is a low-power 2-axis linear
capacitive 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 of detecting the
acceleration, is manufactured using a dedicated
process developed by ST to produce inertial
sensors and actuators in silicon.
The IC interface is manufactured using a standard
CMOS process that allows high level of integration
to design a dedicated circuit which is trimmed to
better match the sensing element characteristics.
The LIS2L02AL has a full scale of
2g and it is
capable of measuring accelerations over a
bandwidth of 2.0 kHz for all axes. The device
bandwidth may be reduced by using external
capacitances. A self-test capability allows to
check the mechanical and electrical signal path of
the sensor.
The LIS2L02AL is available in plastic SMD
package and it is guaranteed to operate over an
extended temperature range of -40C to +85C.
The LIS2L02AL belongs to a family of products
suitable for a variety of applications:
Mobile terminals
Gaming and Virtual Reality input devices
Free-fall detection for data protection
Antitheft systems and Inertial Navigation
Appliance and Robotics.
Order codes
LGA-8
Part number
Temp range,
C
Package
Packing
LIS2L02AL
-40C to +85C
LGA-8
Tray
LIS2L02ALTR
-40C to +85C
LGA-8
Tape & Reel
www.st.com
LIS2L02AL
2/17
CD00068420
Contents
1
Block Diagram & Pins Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Mechanical and Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1
Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
Sensing element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2
IC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3
Factory calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1
Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2
Output Response vs Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1
Mechanical Characteristics at 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2
Mechanical Characteristics derived from measurement in the
-40C to +85C temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3
Electrical characteristics at 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LIS2L02AL
2 Mechanical and Electrical Specifications
CD00068420
5/17
2
Mechanical and Electrical Specifications
2.1 Mechanical
Characteristics
Table 2.
Mechanical Characteristics
1
(Temperature range -40C to +85C) All the parameters are specified @ Vdd =3.3V,
T = 25C unless otherwise noted.
Note: 1 The product is factory calibrated at 3.3V. The device can be powered from 2.4V to 5.25V. Voff,
So and Vt parameters will vary with supply voltage.
2 Typical specifications are not guaranteed
3 Guaranteed by wafer level test and measurement of initial offset and sensitivity
4 Zero-g level and sensitivity are essentially ratiometric to supply voltage
5 Guaranteed by design
Symbol
Parameter
Test Condition
Min.
Typ.
2
Max.
Unit
Ar
Acceleration Range
3
1.8
2.0
g
So
Sensitivity
4
Full-scale = 2g
Vdd/510%
Vdd/5
Vdd/5+10%
V/g
SoDr
Sensitivity Change Vs
Temperature
Delta from +25C
0.01
%/C
Voff
Zero-g Level
4
T = 25C
Vdd/2-6%
Vdd/2
Vdd/2+6%
V
OffDr
Zero-g level Change Vs
Temperature
Delta from +25C
0.2
mg/C
NL
Non Linearity
5
Best fit straight line
Full-scale = 2g
X, Y axis
0.3
1.5
%
CrossAx Cross-Axis
6
2
4
%
An
Acceleration Noise
Density
Vdd=3.3V;
Full-scale = 2g
30
g/
Vt
Self test Output Voltage
Change
7,8
T = 25C
Vdd=3.3V
Full-scale = 2g
X axis
-20
-50
-100
mV
T = 25C
Vdd=3.3V
Full-scale = 2g
Y axis
20
50
100
mV
Fres
Sensing Element
Resonance Frequency
9
all axes
2.0
kHz
Top
Operating Temperature
Range
-40
+85
C
Wh
Product Weight
0.08
gram
H z
PDF 
ZIP
