SI7021-A20-GM Datasheet PDF - Silicon Labs

The SI7021-A20-GM is a monolithic CMOS Humidity and Temperature Sensor with an analogue-to-digital converter, signal processing, calibration data and I²C interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis and excellent long term stability. The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

● Precision relative humidity sensor - ±3% RH (maximum) at 0-80% RH

● 0 to 100% RH Operating range

● Low power consumption - 150µA Active current

● Low power consumption - 60nA standby current

● Integrated on-chip heater