Gas sensor BME680
The BME680 is an integrated environmental sensor designed for mobile applications and wearables, where size and low power consumption are crucial. It expands Bosch Sensortec's existing family of environmental sensors by integrating high linearity and high accuracy sensors for gas, pressure, humidity, and temperature for the first time.
- Barometric pressure
- Temperature
- Relative humidity
- Air quality
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Technical data
Package dimensions
8-Pin LGA with metal
3.0 x 3.0 x 0.93 mm³
3.0 x 3.0 x 0.93 mm³
Operation range (full accuracy)
Pressure: 300...1100 hPa
Humidity 0…100%
Temperature: -40…85°C
Humidity 0…100%
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
(1Hz data refresh rate))
Average current consumption in sleep mode
(1Hz data refresh rate))
Average current consumption in sleep mode
2.1 µA at 1 Hz humidity and temperature
3.1 µA at 1 Hz pressure and temperature
3.7 µA at 1 Hz humidity, pressure and temperature
0.09‒12 mA for p/h/T/gas depending on operation mode
3.1 µA at 1 Hz pressure and temperature
3.7 µA at 1 Hz humidity, pressure and temperature
0.09‒12 mA for p/h/T/gas depending on operation mode
Gas sensor
Response time (τ 33-63%)
Sensor-to-sensor deviation
Power consumption
Output data processing
Response time (τ 33-63%)
Sensor-to-sensor deviation
Power consumption
Output data processing
< 1 s (for new sensors)
+/- 15% +/- 15
< 0.1 mA in ultra-low power mode
direct output of IAQ: Index for Air Quality
+/- 15% +/- 15
< 0.1 mA in ultra-low power mode
direct output of IAQ: Index for Air Quality
Humidity sensor
Response time (τ0-63%)
Accuracy tolerance
Hysteresis
Response time (τ0-63%)
Accuracy tolerance
Hysteresis
8 s
± 3 % relative humidity
≤ 1.5 % relative humidity
± 3 % relative humidity
≤ 1.5 % relative humidity
Pressure sensor
RMS Noise
Sensitivity Error
Temperature coefficient offset
RMS Noise
Sensitivity Error
Temperature coefficient offset
0.12 Pa (equiv. to 1.7 cm)
± 0.25 % (equiv. to 1 m at 400 m height change)
±1.3 Pa/K (equiv. to ±10.9 cm at 1°C temperature change)
± 0.25 % (equiv. to 1 m at 400 m height change)
±1.3 Pa/K (equiv. to ±10.9 cm at 1°C temperature change)
