Data Sheet
Final Datasheet
BME280 Environmental sensor
Page 9
BST-BME280-DS001-10 | Revision 1.1 | May 2015 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
100
80
60
20
0
40
Relative humidity [%]
Temperature [°C]
-40 -20 0 20 40 60 80
Figure 1: humidity sensor operating range
1.6 Pressure sensor specification
Table 3: Pressure parameter specification
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Operating temperature
range
T
A
operational
-40
25
+85
°C
full accuracy
0
+65
Operating pressure
range
P
full accuracy
300
1100
hPa
Supply current
I
DD,LP
1 Hz forced mode,
pressure and
temperature, lowest
power
2.8
4.2
µA
Temperature coefficient
of offset
7
TCO
P
65 °C, 900 hPa
±1.5
Pa/K
±12.6
cm/K
Absolute accuracy
pressure
A
P,full
300 . . . 1100 hPa
0 . . . 65 °C
±1.0
hPa
Relative accuracy
pressure
V
DD
= 3.3V
A
rel
25 . . . 40 °C
±0.12
hPa
7
When changing temperature by e.g. 10 °C at constant pressure / altitude, the measured
pressure / altitude will change by (10 × TCO
P
).