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LIS302ALB Datasheet (HTML) - STMicroelectronics

Part No. LIS302ALB
Description  MEMS motion sensor 3-axis - ±2g analog output piccolo accelerometer
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LIS302ALB
Mechanical and electrical specifications
5/17
2
Mechanical and electrical specifications
2.1
Mechanical characteristics.
Table 2.
Mechanical characteristics(1)
All parameters are specified @ Vdd =3.3V, T = 25°C unless otherwise noted
Symbol
Parameter
Test Condition
Min.
Typ.(2)
Max.
Unit
Ar
Acceleration range(3)
±2.0
g
So
Sensitivity(4)
0.145*Vdd
–5%
0.145*Vdd
0.145*Vdd
+ 5%
V/g
SoDr
Sensitivity change Vs
Temperature
Delta from +25°C
±0.01
%/°C
Voff
Zero-g level(4)
T = 25°C
Vdd/2-6%
Vdd/2
Vdd/2+6%
V
OffDr
Zero-g level change
Vs Temperature
Delta from +25°C
±0.5
mg/°C
NL
Non Linearity(5)
Best fit straight line
±0.5
% FS
CrossAx Cross-Axis(6)
±2%
An
Acceleration Noise
Density
Vdd=3.3V
200
μg/
Vt
Self test output
voltage change(7),(8)
T = 25°C
Vdd=3.3V
X axis
+95
+200
mV
T = 25°C
Vdd=3.3V
Y axis
+95
+200
mV
T = 25°C
Vdd=3.3V
Z axis
+95
+200
mV
Fres
Sensing Element
Resonant
Frequency(9)
all axes
2.0
kHz
Top
Operating
Temperature Range
-40
+85
°C
Wh
Product Weight
30
mgram
1.
The product is factory calibrated at 3.3V. The operational power supply range is specified in table 3. Since the device is
ratiometric 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 ratiometric to supply voltage
5.
Guaranteed by design
6.
Contribution to the measuring output of an inclination/acceleration along any perpendicular axis
7.
Self test output voltage change” is defined as Vout(Vst=Logic1)-Vout(Vst=Logic0)
8.
Self test output voltage change” varies cubically with supply voltage
9.
Minimum resonance frequency Fres=2.0kHz. Sensor bandwidth=1/(2*
π*32kΩ*Cload)
Hz



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