Product details

Relative humidity accuracy (typ) (%RH) 0.5 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 5.5 Average supply current (typ) (µA) 230 Operating temperature range (°C) -40 to 125 Interface type Analog voltage (ratiometric) Rating Catalog
Relative humidity accuracy (typ) (%RH) 0.5 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 5.5 Average supply current (typ) (µA) 230 Operating temperature range (°C) -40 to 125 Interface type Analog voltage (ratiometric) Rating Catalog
WSON (DEF) 8 6.25 mm² 2.5 x 2.5
  • Relative humidity (RH) sensor:
    • Operating range: 0% to 100%RH
    • Accuracy: ±0.5%RH typical
    • Long-term drift: 0.19%RH/yr
    • Ratiometric Analog Output to represent RH
  • Temperature sensor:
    • Operating range: –40°C to 125°C
    • Accuracy: ±0.2°C typical
    • Ratiometric Analog Output to represent Temperature
  • NIST traceability: relative humidity & temperature
  • Output Short Circuit Protection
  • Integrated Reset pin for offset calibration
  • Integrated heater
  • Low power: 230µA typical active current
  • Supply voltage: 1.62V to 5.50V
  • Relative humidity (RH) sensor:
    • Operating range: 0% to 100%RH
    • Accuracy: ±0.5%RH typical
    • Long-term drift: 0.19%RH/yr
    • Ratiometric Analog Output to represent RH
  • Temperature sensor:
    • Operating range: –40°C to 125°C
    • Accuracy: ±0.2°C typical
    • Ratiometric Analog Output to represent Temperature
  • NIST traceability: relative humidity & temperature
  • Output Short Circuit Protection
  • Integrated Reset pin for offset calibration
  • Integrated heater
  • Low power: 230µA typical active current
  • Supply voltage: 1.62V to 5.50V

The HDC3120 is an integrated, capacitive based relative humidity (RH) and temperature sensor where the relative humidity and temperature sensor results are represented as ratiometric analog output. Conversion of signals to the analog domain provides a robust solution in applications requiring signal transmission over wire or other distance-based use cases. The device provides high accuracy measurements over a wide supply range (1.62V – 5.5V) and low power consumption while maintaining less than 0.19% long term drift per year. The HDC3120 is available in a compact 2.5mm × 2.5mm × 0.8mm WSON 8-pin package. Both the temperature and humidity sensors are 100% tested and calibrated on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 standards.

The HDC3120 is an integrated, capacitive based relative humidity (RH) and temperature sensor where the relative humidity and temperature sensor results are represented as ratiometric analog output. Conversion of signals to the analog domain provides a robust solution in applications requiring signal transmission over wire or other distance-based use cases. The device provides high accuracy measurements over a wide supply range (1.62V – 5.5V) and low power consumption while maintaining less than 0.19% long term drift per year. The HDC3120 is available in a compact 2.5mm × 2.5mm × 0.8mm WSON 8-pin package. Both the temperature and humidity sensors are 100% tested and calibrated on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 standards.

Technical documentation

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* Data sheet HDC3120 High-Accuracy (0.5%RH, 0.2°C) Analog Humidity and Temperature Sensor, With Low Long-Term Drift (0.19%RH/yr), and 4s RH% Response datasheet PDF | HTML 14 Feb 2025
* User guide HDC302x Silicon Users Guide (Rev. D) PDF | HTML 18 Feb 2025
EVM User's guide HDC3120 Evaluation Module User's Guide PDF | HTML 14 Nov 2024

Design & development

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Evaluation board

HDC3120EVM — HDC3120 evaluation module

The HDC3120EVM is an analog evaluation module (EVM) designed for users to evaluate the performance of the HDC3120: a versatile, high accuracy ratiometric analog humidity and temperature sensor. This EVM provides users the flexibility and customizability required for implementing the sensor in the (...)

User guide: PDF | HTML
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WSON (DEF) 8 Ultra Librarian

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