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LIS25BA

Mechanical and electrical specifications

32

2

Mechanical and electrical specifications

2.1

Mechanical characteristics

a. The product is factory calibrated at 1.8 V. The operational power supply range is from 1.71 V to 1.99 V.

Table 3. Mechanical characteristics

Symbol

Parameter

Test conditions

Min.

Max.

Unit

FS

Measurement range

After factory calibration

(trimming performed with 1 g DC stimulus)

3.26

3.85

4.16

g

So

Sensitivity

After factory calibration

(trimming performed with 1 g DC stimulus)

0.112

0.122

0.132

mg/LSB

After factory calibration

(trimming performed with 1 g DC stimulus)

-11.37 -11.71 -12.38

dBFS/g

After factory calibration - 100 Hz 1 grms

sine stimulus

-8.37

-8.71

-9.38 dBFS/grms

TCSo

Sensitivity change

vs. temperature

-0.08

+0.08

%/°C

TyOff

Zero-g level offset

accuracy

-300

+300

mg

TCOff

Zero-g level change

vs. temperature

-3.5

+3.5

mg/°C

An

Acceleration noise

X-axis, Y-axis, FS = ±3.85 g, BW = 2400 Hz

1.5

mg rms

Z-axis, FS = ±3.85 g, BW = 2400 Hz

2.4

BW

(DC coupling)

MCLK accuracy ±0.1%

2400

Hz

NL

-2

+2

%FS

RFm

Mechanical resonant

frequency of the

MEMS element

X-axis

5150

Hz

Y-axis

5150

Hz

Z-axis

4950

Hz

ST

X-axis

300

950

mg

Y-axis

300

950

mg

Z-axis

500

2700

mg

THD+N

Total Harmonic

@ sinusoidal vibration of 1 g peak,

freq = 1 kHz

1

%

1. Typical specifications are not guaranteed.

2. By design.

3. MEMS non-linearity based on simulation data.

4. Values are based on preliminary corner simulation data.

5. Max. value is guaranteed by characterization and not tested in production.