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Humidity sensor BME280
BME280
Humidity sensor measuring relative humidity, barometric pressure and ambient temperature
The BME280 is a humidity sensor especially developed for mobile applications and wearables where size and low power consumption are key design parameters. The unit combines high linearity and high accuracy sensors and is perfectly feasible for low current consumption, long-term stability and high EMC robustness. The humidity sensor offers an extremely fast response time and therefore supports performance requirements for emerging applications such as context awareness, and high accuracy over a wide temperature range.
Relative humidity barometric pressure
Low power consumption
Fitness tracking
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Operation range (full accuracy)
|
Technical data
Pressure: 300...1100 hPa
Temperature: -40…85°C |
|
Parameter
Absolute accuracy
(Temp. @ 0…+65°C) |
Technical data
~ ±1 hPa
± 0.12 hPa (typical) equivalent to ±1 m |
|
Parameter
Relative accuracy
p = 700…900hPa (Temp. @ +25...+40°C) |
Technical data
3.4 μA @ 1 Hz
|
|
Parameter
Average typical current consumption (1 Hz data rate)
|
Technical data
±0.50 hPa
|
|
Parameter
Absolute accuracy pressure (typ.)
P=300 ...1100 hPa (T=0 ... 65 °C) |
Technical data
±0.06 hPa
(equivalent to ±50 cm) |
|
Parameter
Relative accuracy pressure (typ.)
P=900…1100 hPa (T=25…40°C) |
Technical data
2.74 μA, typical
(ultra-low power mode) 0.1 μA 5.5 msec (ultra-low power preset) |
|
Parameter
Average current consumption (1 Hz data refresh rate)
|
Technical data
1.2 ... 3.6 V
|
|
Parameter
Average current consumption in sleep mode
|
Technical data
1.71 ... 3.6 V
|
|
Parameter
Average measurement time
|
Technical data
Pressure: 0.01 hPa ( < 10 cm)
Temperature: 0.01° C |
|
Parameter
Supply voltage VDDIO
|
Technical data
1.5 Pa/K, equiv. to 12.6 cm/K
|
|
Parameter
Supply voltage VDD
Resolution of data |
Technical data
I²C and SPI
|
|
Parameter
Temperature coefficient offset
(+25°…+40°C @900hPa) Interface Package dimensions |
Technical data
8-Pin LGA with metal 2.0 x 2.5 x 0.95 mm³ |
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