bmp280 datasheet

Bosch
Sensortec | BMP280 Data sheet
8 |
48
Modifications reserved | Data subject to change without notice
Document number: BST-BMP280-DS001-23 Revision_1.23_11202
0
Offset temperature
coefficient
TCO 900hPa
25 . . . 40 °C
±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
Resolution of
output data in ultra high
resolution mode
R
P
Pressure 0.0016 hPa
R
T
Temperature 0.01 °C
Noise in pressure V
p,full
Full bandwidth, ultra
high resolution
See chapter 3.5
1.3 Pa
11 cm
V
p,filtered
Lowest bandwidth,
ultra high resolution
See chapter 3.5
0.2 Pa
1.7 cm
Absolute accuracy
temperature
3
A
T
@ 25 °C ±0.5 °C
0 . . . +65 °C ±1.0 °C
PSRR (DC) PSRR full V
DD
range ±0.005 Pa/
mV
Long term stability
4
∆P
stab
12 months ±1.0 hPa
Solder drifts Minimum solder
height 50 µm
-0.5 +2 hPa
Start-up time t
startup
Time to first
communication after
both V
DD
> 1.58V and
V
DDIO
> 0.65V
2 ms
Possible sampling rate f
sample
osrs_t = osrs_p = 1;
See chapter 3.8
157 182 tbd
5
Hz
Standby time accuracy ∆t
standby
±5 ±25 %
3
Temperature measured by the internal temperature sensor. This temperature value depends on the PCB temperature, sensor
element self-heating and ambient temperature and is typically above ambient temperature.
4
Long term stability is specified in the full accuracy operating pressure range 0 … 65°C
5
Depends on application case, please contact Application Engineer for further questions