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IIS328DQ

Mechanical and electrical specifications

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2

Mechanical and electrical specifications

2.1

Mechanical characteristics

a. The product is factory calibrated at 3.3 V. Operational power supply (Vdd) over 3.6 V is not recommended.

Table 3. Mechanical characteristics

Symbol

Parameter

Test conditions

Max.(1)

Unit

FS

FS bits set to 00

±2.0

g

FS bits set to 01

±4.0

FS bits set to 11

±8.0

So

Sensitivity

FS bits set to 00

12-bit representation

0.9

0.98

1.1

mg/digit

FS bits set to 01

12-bit representation

1.8

1.95

2.2

FS bits set to 11

12-bit representation

3.5

3.91

4.3

TCSo

Sensitivity change vs temp.

FS bits set to 00

±0.01

%/°C

TyOff

Typical zero-g level offset

FS bits set to 00

-30

±20

+30

mg

TCOff

Zero-g level change vs.

temperature

Excursion from 25 °C

±0.8

mg/°C

Off

Zero-g level offset

FS bits set to 00

-300

+300

mg

An

Acceleration noise density

FS bits set to 00

218

CrAx

-5

+5

%

Vst

Self-test output

FS bits set to 00

X-axis

-500

-800

-1100

LSb

FS bits set to 00

Y-axis

500

800

1100

LSb

FS bits set to 00

Z-axis

400

600

800

LSb

Wh

Product weight

60

mgram

Top

Operating temperature range

-40

+105

°C

1. Min/Max values are based on characterization results, not tested in production

2. Typical values are not guaranteed.

3. Verified by wafer level test and measurement of initial offset and sensitivity.

4. Offset can be eliminated by enabling the built-in high-pass filter.

5. Typical zero-g level offset as per factory calibration @ T = 25

6. Min/Max values for Off parameter are across temperature (-40 °C to 105 °C) and after MSL3 preconditioning. Based on

characterization data. Not guaranteed and not tested in production.