LIS344ALH Mechanical and electrical specifications
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2 Mechanical and electrical specifications
2.1 Mechanical characteristics
Table 3. Mechanical characteristics @ Vdd =3.3 V, T = 25 °C unless otherwise noted
(1)
Symbol Parameter Test condition Min. Typ.
(2)
Max. Unit
Ar Acceleration range
(3)
FS pin connected to
GND
±1.8 ± 2
g
FS pin connected to Vdd ±5.4 ± 6
So Sensitivity
(4)
Full-scale = ±2 g Vdd/5 - 5% Vdd/5 Vdd/5 + 5%
V/g
Full-scale = ±6 g Vdd/15 - 10% Vdd/15 Vdd/15 + 10%
SoDr
Sensitivity change Vs
Temperature
Delta from +25 °C ± 0.01 %/°C
Voff Zero-g level
(4)
Full-scale = ±2 g
T = 25 °C
Vdd/2 - 5% Vdd/2 Vdd/2 + 5% V
OffDr
Zero-g level change Vs
Temperature
Delta from +25 °C ±0.4 mg/°C
NL Non linearity
(5)
Best fit straight line
Full-scale = ±2 g
±0.5 % FS
CrossAx Cross-axis
(6)
±2 %
An
Acceleration noise
density
Vdd = 3.3 V;
Full-scale = ±2 g
50 µg/
Vt
Self test output voltage
change
(7),(8),(9)
X axis
T = 25 °C; Vdd=3.3 V
80 140 200 mV
Y axis
T = 25 °C; Vdd=3.3 V
-200 -140 -80 mV
Z axis
T = 25 °C; Vdd=3.3 V
100 230 350 mV
Fres
Sensing element
resonant frequency
(10)
X,Y,Z axis 1.8 KHz
Top
Operating temperature
range
-40 +85 °C
Wh Product weight 0.040 gram
1. The product is factory calibrated at 3.3 V. The operational power supply range is from 2.4 V to 3.6 V. 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 at the calibration level ±8%.
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. When full-scale is set to ±6 g, “Self test output voltage change” is one third of the specified value at ±2 g.
10. Minimum resonance frequency Fres=1.8 kHz. Sensor bandwidth=1/(2*π*110kΩ*Cload), with Cload>1 nF.
Hz
