IIS2DH datasheet(11/49 Pages) STMICROELECTRONICS

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IIS2DH

Mechanical and electrical specifications

2.2

Temperature sensor characteristics

@ Vdd = 2.5 V, T = 25 °C unless otherwise noted(b)

TCOff

Zero-g level change

vs. temperature

Max delta from 25 °C

±0.5

mg/°C

Vst

Self-test

output change(5) (6) (7)

FS bits set to 00

X-axis; Normal mode

360

LSb

FS bits set to 00

Y-axis; Normal mode

360

LSb

FS bits set to 00

Z-axis; Normal mode

360

LSb

Top

Operating

temperature range

-40

+85

°C

1. Minimum and maximum values are based on characterization data and are not guaranteed

2. Typical specifications are not guaranteed.

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

4. Typical zero-g level offset value after factory calibration test at socket level.

5. The sign of “Self-test output change” is defined by the ST bit in CTRL_REG4 (23h), for all axes.

6. “Self-test output change” is defined as the absolute value of:

OUTPUT[LSb](Self test enabled) - OUTPUT[LSb](Self test disabled). 1LSb = 4 mg at 10-bit representation, ±2 g full scale

7. After enabling the ST bit, correct data is obtained after two samples (low-power mode / normal mode) or after eight samples

(high-resolution mode).

Table 3. Mechanical characteristics (continued)

Symbol

Parameter

Test conditions

Min.(1)

Typ.(2)

Max.(1)

Unit

b. The product is factory calibrated at 2.5 V. Temperature sensor operation is guaranteed in the range 2 V - 3.6 V.

Table 4. Temperature sensor characteristics

Symbol

Parameter

Min.

Typ.(1)

1. Typical specifications are not guaranteed.

Max.

Unit

TSDr

Temperature sensor output

change vs. temperature

digit/°C(2)

2. 8-bit resolution.

TODR

Temperature refresh rate

ODR(3)

3. Refer to Table 28.

Top

Operating temperature range

-40

+85

°C

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