SNAU265D June   2021  – February 2025 HDC3020 , HDC3020-Q1 , HDC3021 , HDC3021-Q1 , HDC3022 , HDC3022-Q1 , HDC3120 , HDC3120-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1HDC3x Devices
    1. 1.1 HDC3x2x Package Comparison
    2. 1.2 HDC3020 in WSON
    3. 1.3 HDC3021 in WSON
    4. 1.4 HDC3022 in WSON
    5.     HDC3120 in WSON
  5. 2Storage and Handling Guidelines
    1. 2.1 Exposure to Contaminants
    2. 2.2 Chemical Analysis
      1. 2.2.1 Saturation and Recovery Tests
      2. 2.2.2 Long-Term Exposure
    3. 2.3 Packaging and Storing
      1. 2.3.1 Assembly
      2. 2.3.2 Application in Extreme Environment
  6. 3Programming the HDC3020
    1. 3.1 The Functional Modes
    2. 3.2 Trigger-On Demand
    3. 3.3 Auto Measurement
    4. 3.4 Programming the CRC
      1. 3.4.1 CRC C Code
    5. 3.5 Example Code
    6. 3.6 Condensation Removal
    7. 3.7 Offset Error Correction
      1. 3.7.1 Offset Error Correction Example With a Fingerboard
  7. 4References
  8. 5Revision History

HDC3120 in WSON

The HDC3120 is the analog variant of the HDC3x family of devices. Similar to the HDC3020, the HDC3120 does not have additional protection over the relative humidity (RH) sensor window and no protection options are currently offered for the HDC3120. The device is available in a 2.5-mm × 2.5-mm WSON package. Below is a list of key differences between the Digital HDC3x family of devices and the HDC3120:

  • Analog RH and Temperature outputs through two (one per output) buffered DACs
  • 12-bit resolution (analog) vs. 16-bit resolution (digital)
  • Integrated on-chip heater is non-configurable
  • Analog HDC3x rehydration period is 30°C at 80% RH for three days compared to digital HDC3x variants which require rehydration for 5 days at 25°C and 50% RH
HDC3020 HDC3120 in WSON Package Figure 1-5 HDC3120 in WSON Package