LPS225HB datasheet(8/47 Pages) STMICROELECTRONICS

8 / 47 page

Mechanical and electrical specifications

LPS225HB

8/47

DocID030115 Rev 2

Mechanical and electrical specifications

2.1

Mechanical characteristics

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

Table 3. Pressure and temperature sensor characteristics

Symbol

Parameter

Test condition

Min.

Typ.(1)

Max.

Unit

Pressure sensor characteristics

PTop

Operating temperature range

-40

+85

°C

PTfull

Full accuracy temperature range

+65

°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

±0.1

hPa

PAccT

Absolute accuracy over temperature

Pop

T = 0 to 65 °C

After OPC(3)

±0.1

hPa

Pop

T = 0 to 65 °C

no OPC (3)

±1

Pnoise

RMS pressure sensing noise(4)

with embedded

filtering

0.0075

hPa

RMS

ODRPres

Pressure output data rate(5)

Temperature sensor characteristics

Top

Operating temperature range

-40

+85

°C

Tsens

Temperature sensitivity

100

LSB/°C

Tacc

Temperature absolute accuracy

T = 0 to 65 °C

±1.5

°C

ODRT

Output temperature data rate(5)

1. Typical specifications are not guaranteed.

2. Parameter not tested at final test

3. OPC: One-Point Calibration, see RPDS_L (18h), RPDS_H (19h).

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

at highest ODR and with LC_EN bit = 0, EN_LPFP = 1, LPFP_CFG = 1.

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

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