BME280 datasheet(11/60 Pages) BOSCH

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Bosch Sensortec | BME280 Data sheet

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Modifications reserved | Data subject to change without notice

Document number: BST-BME280-DS001-23 Revision_1.23_012022

Temperature coefficient

of offset5

TCOP

25…65 °C, 900 hPa

±1.5

Pa/K

±12.6

cm/K

Absolute accuracy

pressure

APext

300. . 1100 hPa

-20 . . . 0 °C

±1.7

hPa

AP,full

300 . . . 1100 hPa

0 . . . 65 °C

±1.0

hPa

1100 . . . 1250 hPa

25 . . . 40 °C

±1.5

hPa

Relative accuracy

pressure

VDD = 3.3V

Arel

700 … 900hPa

25 . . . 40 °C

±0.12

hPa

Resolution of

pressure output data

Highest oversampling

0.18

Noise in pressure

NP,fullBW

Full bandwidth,

highest oversampling

See chapter 3.6

1.3

NP,filtered

Reduced bandwidth,

highest oversampling

See chapter 3.6

0.2

1.7

Solder drift

Minimum solder height

50µm

-0.5

+2.0

hPa

Long term stability6

∆

Pstab

per year

±1.0

hPa

Possible sampling rate

fsample_P

Lowest oversampling,

see chapter 9.2

157

182

1.4 Temperature sensor specification

Table 4: Temperature parameter specification

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Operating range

Operational

-40

°C

Full accuracy

°C

Supply current

IDD,T

1 Hz forced mode,

temperature

measurement only

1.0

µA

AT,25

25 °C

±0.5

°C

When changing temperature by e.g. 10 °C at constant pressure / altitude, the measured pressure / altitude will change by (10 ×

TCOP).

Long term stability is specified in the full accuracy operating pressure range 0 … 65 °C

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