Data Sheet

Final Datasheet
BME280 Environmental sensor
Page 19
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.
Table 11: Noise and current for humidity
Humidity / temperature
oversampling setting
Typical RMS noise in
humidity [%RH] at 25 °C
Typ. current [µA] at 1 Hz forced
mode, 25 °C, humidity and
temperature measurement, incl.
I
DDSM
×1 / ×1
0.07
1.8
×2 / ×1
0.05
2.5
×4 / ×1
0.04
3.8
×8 / ×1
0.03
6.5
×16 / ×1
0.02
11.7
Table 12: Noise and current for pressure
Typical RMS noise in pressure [Pa] at 25 °C
Typ. current [µA] at 1 Hz
forced mode, 25 °C,
pressure and temperature
measurement, incl. I
DDSM
Pressure / temperature
oversampling setting
IIR filter coefficient
off
2
4
8
16
×1 / ×1
3.3
1.9
1.2
0.9
0.4
2.8
×2 / ×1
2.6
1.5
1.0
0.6
0.4
4.2
×4 / ×1
2.1
1.2
0.8
0.5
0.3
7.1
×8 / ×1
1.6
1.0
0.6
0.4
0.2
12.8
×16 / ×2
1.3
0.8
0.5
0.4
0.2
24.9
Table 13: Temperature dependence of pressure noise
RMS noise at different temperatures
Temperature
Typical change in noise
compared to 25 °C
-10 °C
+25 %
25 °C
±0 %
75 °C
-5 %