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PDF LIS3L02AQ Data sheet ( Hoja de datos )
| Número de pieza | LIS3L02AQ | |
| Descripción | INERTIAL SENSOR: 3Axis - 2g/6g LINEAR ACCELEROMETER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LIS3L02AQ
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 LIS3L02AQ is a three-axis linear accelerome-
ter that includes a sensing element and an IC in-
terface 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 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 LIS3L02AQ has a user selectable full scale of
QFN-44
ORDERING NUMBER: LIS3L02AQ
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 LIS3L02AQ is available in plastic SMD pack-
age and it is specified over a temperature range
extending from -40°C to +85°C.
The LIS3L02AQ 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
S/H
S/H
Routy Vouty
Routz Voutz
VOLTAGE & CURRENT
REFERENCE
TRIMMING CIRCUIT
&
TEST INTERFACE
CLOCK
&
PHASE GENERATOR
February 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/7
1 page  
LIS3L02AQ
creasing or decreasing the voltage supply, the sensitivity and the offset will increase or decrease linearly.
The feature provides the cancellation of the error related to the voltage supply along an analog to digital
conversion chain.
1.3 Factory calibration
The IC interface is factory calibrated to provide to the final user a device ready to operate. The parameters
which are trimmed are: gain, offset, common mode and internal clock frequency.
The trimming values are stored inside the device by a poly-fuse structure. Any time the device is turned
on, the memorized bits are downloaded into the registers to be employed during the normal operation. The
poly-fuse approach allows the final user to utilize the device without any need for further calibration
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5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LIS3L02AQ.PDF ] | |
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