LIS244AL 查看數據表（PDF） - STMicroelectronics

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LIS244AL

MEMS motion sensor: 2-axis - ±2g ultracompact linear accelerometer

STMicroelectronics 

LIS244AL

Mechanical and electrical specifications

2

Mechanical and electrical specifications

2.1

Mechanical characteristics

(Temperature range -40°C to +85°C). All the parameters are specified @ Vdd =3.0V,

T = 25°C unless otherwise noted

Table 3.

Symbol

Mechanical characteristics(1)

Parameter

Test condition

Min.

Typ.(2)

Max.

Unit

Ar Acceleration range(3)

±2

g

So Sensitivity(5)

0.140*Vdd -

10%

0.140*Vdd

0.140*Vdd+

10%

V/g

SoDr

Voff

Sensitivity change vs

temperature

Zero-g level(4)

Delta from +25°C

T = 25°C

Vdd/2-15%

0.01

Vdd/2

Vdd/2+15%

%/°C

V

OffDr

Zero-g level change vs

temperature

Delta from +25°C

NL Non linearity(5)

Best fit straight line

CrossAx Cross-axis(6)

1

mg/°C

±0.5

% FS

±2

%

An

Acceleration noise

density

Vdd=3.0V

220

µg/ Hz

T = 25°C

Vdd=3.0V

Vt

Self test output voltage X axis

change(7),

T = 25°C

Vdd=3.0V

Y axis

105

mV

105

mV

Fres

Sensing element

resonant frequency(8)

X,Yaxis

4.0

kHz

Top

Operating temperature

range

-40

+85

°C

Wh Product weight

0.040

gram

1. The product is factory calibrated at 3.0V. The operational power supply range is from 2.4V to 3.6V. 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. Minimum resonance frequency Fres=4.0kHz. Sensor bandwidth=1/(2*π*32kΩ*Cload)

5/15

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