Humidity sensor BME280
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.
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Technical data
Operation range
Pressure: 300...1100 hPa
Temperature: -40…85°C
Temperature: -40…85°C
Supply voltage VDDIO
Supply voltage VDD
Supply voltage VDD
1.2 ... 3.6 V
1.71 ... 3.6 V
1.71 ... 3.6 V
Interface
I²C and SPI
Average current consumption (typ.) (1Hz data refresh rate)
1.8 μA @ 1 Hz (H, T)
2.8 μA @ 1 Hz (P, T)
3.6 μA @ 1 Hz (H, P, T)
T = temperature
2.8 μA @ 1 Hz (P, T)
3.6 μA @ 1 Hz (H, P, T)
T = temperature
Average current consumption in sleep mode
0.1 μA
Humidity sensor
Response time (τ63%) Accuracy tolerance
Hysteresis
Response time (τ63%) Accuracy tolerance
Hysteresis
1 s
±3% relative humidity
≤2% relative humidity
±3% relative humidity
≤2% relative humidity
Pressure sensor
RMS Noise
Sensitivity Error
Temperature coefficient offset
RMS Noise
Sensitivity Error
Temperature coefficient offset
0.2Pa (equiv. to 1.7cm)
±0.25% (equiv. to 1m at 400m height change)
±1.5Pa/K (equiv. to ±12.6cm at 1 °C temperature change)
±0.25% (equiv. to 1m at 400m height change)
±1.5Pa/K (equiv. to ±12.6cm at 1 °C temperature change)
RoHS compliant, halogen-free, MSL1
Package dimensions
8-Pin LGA with metal
2.5 x 2.5 x 0.93 mm³
2.5 x 2.5 x 0.93 mm³
