AIS2IH datasheet(6/63 Pages) STMICROELECTRONICS

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Mechanical and electrical specifications

2.1

Mechanical characteristics

@ Vdd = 3.0 V, T = -40 °C to +115 °C unless otherwise noted. The product is factory calibrated at 3.0 V.

Table 3. Mechanical characteristics

Symbol

Parameter

Test conditions

Min. Typ.(1) Max.

Unit

Measurement range

±2

±4

±8

±16

Nominal sensitivity

@ FS ±2 g in High-Performance Mode and

all low-power modes except Low-Power Mode 1

0.244

mg/digit

@ FS ±4 g in High-Performance Mode and

all low-power modes except Low-Power Mode 1

0.488

@ FS ±8 g in High-Performance Mode and

all low-power modes except Low-Power Mode 1

0.976

@ FS ±16 g in High-Performance Mode and

all low-power modes except Low-Power Mode 1

1.952

@ FS ±2 g in Low-Power Mode 1

0.976

@ FS ±4 g in Low-Power Mode 1

1.952

@ FS ±8 g in Low-Power Mode 1

3.904

@ FS ±16 g in Low-Power Mode 1

7.808

So %

Sensitivity tolerance - long term(2)

in High-Performance Mode

-10

+10

in Low-Power Modes 1/2/3/4

-15

+15

Noise density -

High-Performance Mode(3)(5)

@ FS ±2 g, @ 25 °C

130

µg/√Hz

RMS

RMS noise - Low-Power Modes(4)

@ FS ±2 g, @ 25 °C(5)

Low-Power Mode 4

1.6

2.9

mg(RMS)

Low-Power Mode 3

2.1

3.8

Low-Power Mode 2

3.0

5.7

Low-Power Mode 1

5.5

11.0

TyOff

Zero-g level offset accuracy(6)

@ 25 °C

±20

OFF_Acc Offset accuracy - long term(2)

-300

+300

TCO

Zero-g offset change vs. temperature

±0.2

mg/°C

TCS

Sensitivity change vs. temperature

±0.01

%/°C

Non-linearity(7)

best-fit straight line

@ FS ±2 g, @ 25 °C

±0.3

%FS

Cross-axis sensitivity(7)

@ FS ±2 g, @ 25 °C

±0.4

Self-test positive difference

@ FS ±16 g, Vdd from 1.62 V to 3.6 V

1500

1. Typical specifications are not guaranteed.

2. Long term includes the following conditions: post solder, drift in temperature in the range [-40°C; +115°C]

and over life.

AIS2IH

Mechanical and electrical specifications

DS12421 - Rev 4

page 6/63

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