Data Sheet

Bosch Sensortec | BME280 Data sheet
11 | 55
Modifications reserved | Data subject to change without notice
Document number: BST-BME280-DS002-15
Revision_1.6_092018
Temperature coefficient
of offset
5
TCO
P
25…65 °C, 900 hPa
±1.5
Pa/K
±12.6
cm/K
Absolute accuracy
pressure
A
P
ext
300. . 1100 hPa
-20 . . . 0 °C
±1.7
hPa
A
P,full
300 . . . 1100 hPa
0 . . . 65 °C
±1.0
hPa
A
P
1100 . . . 1250 hPa
25 . . . 40 °C
±1.5
hPa
Relative accuracy
pressure
V
DD
= 3.3V
A
rel
700 … 900hPa
25 . . . 40 °C
±0.12
hPa
Resolution of
pressure output data
R
P
Highest oversampling
0.18
Pa
Noise in pressure
N
P,fullBW
Full bandwidth,
highest oversampling
See chapter 3.6
1.3
Pa
11
cm
N
P,filtered
Reduced bandwidth,
highest oversampling
See chapter 3.6
0.2
Pa
1.7
cm
Solder drift
Minimum solder height
50µm
-0.5
+2.0
hPa
Long term stability
6
P
stab
per year
±1.0
hPa
Possible sampling rate
f
sample_P

Lowest oversampling,
see chapter 9.2
157
182
Hz
1.4 Temperature sensor specification
Table 4: Temperature parameter specification
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Operating range
T
Operational
-40
25
85
°C
Full accuracy
0
65
°C
Supply current
I
DD,T
1 Hz forced mode,
temperature
measurement only
1.0
µA
A
T,25
25 °C
±0.5
°C
5
When changing temperature by e.g. 10 °C at constant pressure / altitude, the measured pressure / altitude will change by (10 ×
TCO
P
).
6
Long term stability is specified in the full accuracy operating pressure range 0 … 65 °C