Gas sensor BME680
4-in-1. Ultra-low power. BSEC software included.
BME680
Gas sensor measuring relative humidity, barometric pressure, ambient temperature and gas (VOC).
The BME680 is the first gas sensor that integrates high-linearity and high-accuracy gas, pressure, humidity and temperature sensors. It is especially developed for mobile applications and wearables where size and low power consumption are critical requirements. The BME680 guarantees - depending on the specific operating mode - optimized consumption, long-term stability and high EMC robustness. In order to measure air quality for personal wellbeing the gas sensor within the BME680 can detect a broad range of gases such as volatile organic compounds (VOC).
Possible use cases:
- Personal air quality tracker
- Air quality mapping
- Air quality inside cars & public transport
- Enhanced context awareness
- Accurate step & calorie tracker
- Quick GPS-fix & improved navigation
- Indicator of too high / low humidity
- Air quality & well-being indicator
- Sleep / recovery tracker
- Weather trend
- Stair counter
- Floor level detection
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Package dimensions
|
Technical data
8-Pin LGA with metal
3.0 x 3.0 x 0.93 mm³ |
|
Parameter
Operation range (full accuracy)
|
Technical data
Pressure: 300...1100 hPa
Humidity 0…100% Temperature: -40…85°C |
|
Parameter
Supply voltage VDDIO
Supply voltage VDD |
Technical data
1.2 ... 3.6 V
1.71 ... 3.6 V |
|
Parameter
Interface
|
Technical data
I²C and SPI
|
|
Parameter
Average current consumption
(1Hz data refresh rate)) Average current consumption in sleep mode |
Technical data
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 |
|
Parameter
Gas sensor
Response time (τ 33-63%) Sensor-to-sensor deviation Power consumption Output data processing |
Technical data
< 1 s (for new sensors) +/- 15% +/- 15 < 0.1 mA in ultra-low power mode direct output of IAQ: Index for Air Quality |
|
Parameter
Humidity sensor
Response time (τ0-63%) Accuracy tolerance Hysteresis |
Technical data
8 s ± 3 % relative humidity ≤ 1.5 % relative humidity |
|
Parameter
Pressure sensor
RMS Noise Sensitivity Error Temperature coefficient offset |
Technical data
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) |
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