The HDC302x-Q1 is an integrated capacitive based relative humidity (RH) and temperature sensor. The device 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 traceable and verified with equipment that is calibrated to ISO/IEC 17025 standards.
Offset Error Correction reduces RH sensor offset due to aging, exposure to extreme operating conditions, and contaminants to return device to within accuracy specifications. For battery IoT applications, auto measurement mode and ALERT feature enable low system power by maximizing MCU sleep time. There are four different I 2C addresses that support speeds up to 1 MHz. A heating element is available to dissipate condensation and moisture.
The HDC3020 -Q1 is an open cavity package without protective cover. Two device variants have a cover option to protect the open cavity RH sensor: HDC3021 -Q1 and HDC3022 -Q1. HDC3021 -Q1 has removable protective tape to allow conformal coatings and PCB wash. HDC3022 -Q1 has a permanent IP67 filter membrane to protect against dust, water and PCB wash. All three package variants have wettable flanks option.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | HDC302x-Q1 Automotive 0.5%RH Digital Relative Humidity Sensor, 0.19%RH/yr Long Term Drift, 4s Response, Offset Error Correction, 0.1°C Temperature Sensor datasheet (Rev. C) | PDF | HTML | 24 Mar 2023 |
| * | User guide | HDC302x Silicon Users Guide (Rev. C) | PDF | HTML | 13 Jul 2023 |
| Application brief | Using RH to Derive Vapor Pressure, Dew Point, Absolute Humidity, and Enthalpy | PDF | HTML | 09 Feb 2023 | |
| Application brief | Improving System Reliability in Auto and Ind. Cameras w/ AccurateTemp. Sensing | PDF | HTML | 03 Jan 2022 | |
| Application brief | Leveraging Relative Humidity Sensor Enhanced Features for Ultra-Low-Power System (Rev. A) | PDF | HTML | 01 Sep 2021 | |
| Application brief | How the HDC3020 Humidity Sensor Family Achieves The Industry's Lowest Drift (Rev. A) | PDF | HTML | 31 Aug 2021 | |
| Technical article | Interface to sensors in seconds with ASC Studio | PDF | HTML | 12 Nov 2020 |
For additional terms or required resources, click any title below to view the detail page where available.
The HDC3020EVM evaluation module (EVM) enables designers to evaluate the operation and performance of the HDC3020 relative humidity and temperature sensor. The EVM hosts an MSP430F5528 microcontroller (µC) as well as the HDC3020. The µC is used to control the HDC3020 and communicate (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DEH) | 8 | Ultra Librarian |
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