2

Mechanical and electrical specifications

2.1

Mechanical characteristics

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

Symbol

Parameter

Test condition

Min.

Typ.(1)

Max.

Unit

Pressure sensor characteristics

Operating temperature range

-40

+85

°C

Full accuracy temperature range

0

+65

°C

Operating pressure range

300

1200

hPa

Pressure output data

24

bits

Pressure sensitivity

4096

LSB/hPa

Relative accuracy over pressure(2)

P= 800 - 1100 hPa, T = 25 °C

-0.5

+0.5

hPa

Absolute accuracy over temperature

Before One-Point Calibration

±3

hPa

RMS pressure sensing noise(3)

With embedded filtering (ODR/20 in low-current mode)

0.016

hPa RMS

With embedded filtering (ODR/20 in low-noise mode)

0.008

Pressure output data rate

1

10

25

50

75

Hz

P_longterm

Pressure accuracy, long-term stability

±1

hPa/year

Temperature sensor characteristics

Operating temperature range

-40

+85

°C

Temperature sensitivity

100

LSB/°C

Temperature output data rate

1

10

25

50

75

Hz

1. Typical specifications are not guaranteed.

2. No production limit & based on results of characterization.

3. Pressure noise RMS evaluated in a controlled environment, based on the average standard deviation of 32

measurements at highest ODR.

LPS33K

Mechanical and electrical specifications

DS12817 - Rev 3

page 3/31