LPS22DF datasheet(4/54 Pages) STMICROELECTRONICS

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Mechanical and electrical specifications

3.1

Mechanical characteristics

VDD = 1.8 V, T = 25 °C, unless otherwise noted.

Table 2. Pressure and temperature sensor characteristics

Symbol

Parameter

Test condition

Min.

Typ.(1)

Max.

Unit

Pressure sensor characteristics

PTop

Operating temperature range

-40

+85

°C

Pop

Operating pressure range

260

1260

hPa

Pbits

Pressure output data

bits

Psens

Pressure sensitivity

4096

LSB/hPa

PAccRel

Relative accuracy over pressure(2)

P= 800 - 1100 hPa

T =25 °C

±0.015

hPa

PAccT

Absolute accuracy over temperature

Pop, T = -20 to 80°C

±0.5

hPa

Pnoise

RMS pressure sensing noise(3)

with embedded filter and at T = 25 °C

0.0034

hPa RMS

ODRPres Pressure output data rate(4)

100

200

TCO

Temperature coefficient offset

P = 660 ~ 1160 hPa

T = -20 ~ +65 °C

±0.45

Pa/°C

P_drift

Soldering drift

±0.5

hPa

Temperature sensor characteristics

Top

Operating temperature range

-40

+85

°C

Tsens

Temperature sensitivity

100

LSB/°C

Tacc

Temperature absolute accuracy

T = 0 to 80°C

±1.5

°C

ODRT

Output temperature data rate(4)

100

200

1. Typical specifications are not guaranteed.

2. By design, the typ. value is defined based on characterization data with 10 hPa pressure interval.

3. Pressure noise RMS evaluated in a controlled environment, based on the average standard deviation of 50 measurements

with AVG = 512, BW = ODR/9.

4. Output data rate is configured by ODR[3:0] in CTRL_REG1 (10h).

LPS22DF

Mechanical and electrical specifications

DS13316 - Rev 1

page 4/54

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