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PDF LIS352AR Data sheet ( Hoja de datos )
| Número de pieza | LIS352AR | |
| Descripción | MEMS motion sensor | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LIS352AR
MEMS motion sensor:
3-axis ±2 g analog-output "piccolo" accelerometer
Features
■ Single voltage supply operation
■ ±2 g full-scale
■ 3 acceleration channels plus multiplexed
analog output
■ Ratiometric output voltage
■ Power-down mode
■ Embedded self-test
■ 10000 g high shock survivability
■ ECOPACK® RoHS and “Green” compliant
(see Section 7)
Applications
■ Free-fall detection for data protection
■ Tilting applications
■ Gaming and virtual reality input devices
■ Antitheft systems and inertial navigation
Description
The LIS352AR is a miniaturized low-power 3-axis
linear accelerometer belonging to the “piccolo”
family of ST motion sensors. It includes a sensing
element and an IC interface 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 motion
sensors and actuators in silicon.
The IC interface is manufactured using a CMOS
process that allows the design of a dedicated
circuit which is trimmed to better match the
sensing element characteristics.
The LIS352AR has a full-scale of ±2 g and is
capable of measuring accelerations over a
maximum bandwidth of 2.0 kHz. The device
bandwidth may be reduced by using external
LGA-14 (3x5x0.9mm)
capacitors. The self-test capability allows the user
to check the functioning of the sensor in the final
application.
The device has three analog acceleration outputs,
plus an embedded multiplexer that allows for
redirection of the analog outputs onto a single pin
for operation with a single-channel A/D converter.
ST is already in the field with several hundred
million sensors which have received excellent
acceptance from the market in terms of quality,
reliability and performance
The LIS352AR is provided in a plastic land grid
array (LGA) package.
Several years ago ST successfully pioneered the
usage of this package for accelerometers. Today,
ST has the widest manufacturing capability and
strongest expertise in the world for production of
sensors in plastic LGA packages.
Table 1. Device summary
Order code
Temp.
range [°C]
Package
Packing
LIS352AR -40 to +85 LGA-14
Tray
LIS352ARTR -40 to +85 LGA-14 Tape and reel
February 2010
Doc ID 16933 Rev 1
1/15
www.st.com
15
Free Datasheet http://www.datasheet4u.com/
1 page  
LIS352AR
Mechanical and electrical specifications
2 Mechanical and electrical specifications
2.1 Mechanical characteristics
@ Vdd=3.3 V, T=25 °C unless otherwise noted(a).
Table 3. Mechanical characteristics
Symbol
Parameter
Test condition
Min.
Ar Acceleration range(2)
So Sensitivity(3)
0.145*Vdd
–5%
SoDr
Sensitivity change vs.
temperature
Delta from +25 °C
Voff Zero-g level(4)
T = 25 °C
OffDr
Zero-g level change
Vs temperature
Delta from +25 °C
NL Non linearity(4)
Best fit straight line
CrossAx Cross-axis(5)
Vdd/2-6%
An
Acceleration noise
density
Vdd=3.3 V
T = 25 °C
Vdd=3.3 V
X axis
60
T = 25 °C
Vt
Self-test output
voltage change(6),(7)
Vdd=3.3 V
Y axis
60
T = 25 °C
Vdd=3.3 V
Z axis
60
Fres
Sensing element
resonant frequency(8)
All axes
2.0
Top
Operating
temperature range
-40
Wh Product weight
1. Typical specifications are not guaranteed
2. Guaranteed by wafer level test and measurement of initial offset and sensitivity
3. Zero-g level and sensitivity are ratiometric to supply voltage
4. Guaranteed by design
Typ.(1)
±2
0.145*Vdd
±0.01
Vdd/2
±0.3
±0.5
±2
100
30
Max.
0.145*Vdd
+ 5%
Vdd/2+6%
900
900
900
+85
Unit
g
V/g
%/°C
V
mg/°C
% FS
%
µg/ Hz
mV
mV
mV
kHz
°C
mgram
a. The product is factory calibrated at 3.3 V. The operational power supply range is specified in Table 4. Since the
device is ratiometric, Voff, So and Vt parameters will vary with supply voltage.
Doc ID 16933 Rev 1
5/15
5 Page 
LIS352AR
Application hints
The tolerance of the internal resistor can vary ±15% (typ) from its nominal value of 32 kΩ;
thus the cut-off frequency will vary accordingly. A minimum capacitance of 2.5 nF for CLOAD
(x, y, z) is required.
An external capacitor can be added to the Vout pin. Values below 10 pF are recommended.
Table 6.
Filter capacitor selection, CLOAD (x,y,z)
Cut-off frequency
1 Hz
10 Hz
20 Hz
50 Hz
100 Hz
200 Hz
500 Hz
Capacitor value
5 µF
0.5 µF
250 nF
100 nF
50 nF
25 nF
10 nF
Table 7. MUX I/O table
S1 pin
0
0
1
1
S0 pin
0
1
0
1
MUX status
Vout = Voutx
Vout = Vouty
Vout = Voutz
Vout = Aux_in
6.1 Soldering information
The LGA package is compliant with the ECOPACK®, RoHs and “Green” standard.
It is qualified for soldering heat resistance according to JEDEC J-STD-020C.
Leave “pin 1 Indicator” unconnected during soldering.
Land pattern and soldering recommendations are available at www.st.com.
Doc ID 16933 Rev 1
11/15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet LIS352AR.PDF ] | |
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