LIS2DH datasheet(11/50 Pages) STMICROELECTRONICS

11 / 50 page

LIS2DH

Mechanical and electrical specifications

Doc ID 022516 Rev 1

11/49

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

g/°C

Vst

Self-test

output change(5),(6),(7)

FS bit set to 00

X axis; Normal mode

360

LSb

FS bit set to 00

Y axis; Normal mode

360

LSb

FS bit set to 00

Z axis; Normal mode

360

LSb

Top

Operating

temperature range

-40

+85

°C

Typical specifications are not guaranteed.

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

Typical zero-g level offset value after MSL3 preconditioning.

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

The sign of “Self-test output change” is defined by CTRL_REG4 ST bit, for all axes.

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

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

After enabling ST, 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.

Typ.(1)

Max.

Unit

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)

Typical specifications are not guaranteed.

Max.

Unit

TSDr

Temperature sensor output

change vs temperature

digit/°C(2)

8-bit resolution.

TODR

Temperature refresh rate

ODR(3)

Refer to Table 28: Data rate configuration.

Top

Operating temperature range

-40

+85

°C

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