LIS344ALH

Mechanical and electrical specifications

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2

Mechanical and electrical specifications

2.1

Mechanical characteristics

Table 3.

Symbol

Parameter

Test condition

Min.

Max.

Unit

Ar

FS pin connected to

GND

±1.8

± 2

g

FS pin connected to Vdd

±5.4

± 6

So

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

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

Best fit straight line

Full-scale = ±2 g

±0.5

% FS

±2

%

An

Acceleration noise

density

Vdd = 3.3 V;

Full-scale = ±2 g

50

µg/

Vt

Self test output voltage

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

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.

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