LPS27HHTW datasheet(4/55 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

±0.025

hPa

PAccT

Absolute accuracy over temperature

P = 860 ~ 1160 hPa, T = 25 ~ 65°C

±0.5

hPa

P = 260 ~ 1260 hPa, T = 0 ~ 65 °C

±1

Pnoise

RMS pressure sensing noise(3)

with embedded filter and at T = 25 °C

0.007

hPa RMS

ODRPres

Pressure output data rate (4)

100

200

TCO

Temperature coefficient offset

P = 860 ~ 1160 hPa, T = -20 ~ +65 °C

0.75

Pa/°C

P_longterm

Pressure accuracy, long-term stability

hPa/year

P_drift

Soldering drift

±0.5

hPa

Temperature sensor characteristics

Top

Operating temperature range

-40

+85

°C

Tacc

Temperature absolute accuracy

25 ~ 65 °C

±1.5

°C

Tsens

Temperature sensitivity

100

LSB/°C

ODRT

Temperature output data rate

100

200

1. Typical specifications are not guaranteed.

2. By design, the typ. value is defined based 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 LOW_NOISE_EN = 1, EN_LPFP = 1, LPFP_CFG = 1.

4. Output data rate is configured acting on ODR[2:0] in CTRL_REG1 (10h).

LPS27HHTW

Mechanical and electrical specifications

DS13489 - Rev 1

page 4/55

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