ILPS22QS datasheet(5/57 Pages) STMICROELECTRONICS

部件名	ILPS22QS

功能描述	Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor

PDF	57 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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5 / 57 page

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

+105

°C

Pop

Operating pressure range

Mode 1

Mode 2

260

1260

4060

hPa

Pbits

Pressure output data

bits

Psens

Pressure sensitivity

Mode 1

Mode 2

4096

2048

LSB/hPa

PAccRel

Relative pressure accuracy(2)

Mode 1

Mode 2

T =25 °C

P= 800 ~ 1100 hPa

P = 2060 ~ 4060 hPa

±0.015

±1

hPa

PAccT

Absolute pressure accuracy

Mode 1

Mode 2

Refer to Table 3

P = 660 ~ 1260

T = -20 ~ 65 °C

T = -40 ~ 105 °C

P = 1260 ~ 4060 hPa

T = 0 ~ 65 °C

T = -40 ~ 105 °C

±0.5

±1

±0.28%

±0.37%

hPa

Pnoise

RMS pressure noise(3)

Mode1

Mode 2

Refer to Table 24

T = 25 °C

0.34

0.57

ODRPres Pressure output data rate(4)

100

200

TCO

Temperature coefficient offset

Mode 1

Mode 2

P = 660 ~ 1160 hPa, T = -20 ~ +65 °C

P = 2060 ~ 3060 hPa, T = 0 ~ +45 °C

±0.45

±3.5

Pa/°C

P_drift

Soldering drift

±0.5

hPa

ILPS22QS

Mechanical and electrical specifications

DS13431 - Rev 3

page 5/57

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