SI7021 Temperature and Humidity Sensor Card
SI7021 is a combination of temperature and humidity sensor, analog-digital converter, signal processing circuit and I2C communication circuit. integrated.
Specifications:
- Operating voltage: 1.9 - 3.6V (recommended: 3.3V)
- Idle current draw: 60nA
- Temperature measurement range: -40 - 85 ℃ (recommended: -10 - 60℃)
- Temperature sensitivity: ±0.4℃ (between -10 - 85℃)
- Humidity measurement range: 0% - 100% relative humidity (recommended: 20% - 80% relative humidity)
- Humidity measurement accuracy: ± 3% (range 20%-80%)
- Temperature measurement cycle time: 7ms
- Humidity measurement cycle time: 17ms (temperature measurement is automatically made when humidity measurement is made)
- Communication interface: I2C
- Dimensions: 13mm x 10mm
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