HDC3020 - Texas Instruments

HDC3020 Digital Relative Humidity Sensor

The HDC302x is an integrated capacitive based relative humidity (RH) and temperature sensor. It provides high accuracy measurements over a wide supply range (1.62 V – 5.5 V), along with ultra-low power consumption in a compact 2.5-mm × 2.5-mm package. Both the temperature and humidity sensors are 100% tested and trimmed on a production setup that is NIST tr.

Features

• Relative humidity (RH) sensor:
  – Operating range: 0% to 100%
  – Accuracy: ±0.5% typical
  – Offset Error Correction: reduces offset to return device to within accuracy specification
  – Long-term drift: 0.19%RH/yr
  – Condensation protection with integrated heater
• Temperature sensor:
  – Operating range:
  –40°C to 125°C
  – Accuracy: ±0.1°C typical
• NIST traceability: relative humidity & temperature
• Low power: average current 0.4 µA
• I2C interface compatibility up to 1-MHz speeds
  – Four selectable I2C addresses
  – Data protection through CRC checksum
• Supply voltage: 1.62 V to 5.50 V
• Available .