Product details

Relative humidity accuracy (typ) (%RH) 0.5 Temperature accuracy (typ) (°C) 0.1 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) (A) 0.0000004 Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
Relative humidity accuracy (typ) (%RH) 0.5 Temperature accuracy (typ) (°C) 0.1 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) (A) 0.0000004 Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
WSON (DEF) 8 6.25 mm² 2.5 x 2.5
  • 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 auto measurement mode
  • Programmable interrupts
  • Programmable RH and Temp measurement offset
  • Factory-installed polyimide tape assembly cover
  • Factory-installed IP67 rated environmental cover
  • 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 auto measurement mode
  • Programmable interrupts
  • Programmable RH and Temp measurement offset
  • Factory-installed polyimide tape assembly cover
  • Factory-installed IP67 rated environmental cover

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 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 I2C addresses that support speeds up to 1 MHz. A heating element is available to dissipate condensation and moisture.

The HDC3020 is an open cavity package without protective cover. Two device variants have a cover option to protect the open cavity RH sensor: HDC3021 and HDC3022. HDC3021 has removable protective tape to allow conformal coatings and PCB wash. HDC3022 has a permanent IP67 filter membrane to protect against dust, water and PCB wash.

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 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 I2C addresses that support speeds up to 1 MHz. A heating element is available to dissipate condensation and moisture.

The HDC3020 is an open cavity package without protective cover. Two device variants have a cover option to protect the open cavity RH sensor: HDC3021 and HDC3022. HDC3021 has removable protective tape to allow conformal coatings and PCB wash. HDC3022 has a permanent IP67 filter membrane to protect against dust, water and PCB wash.

Download View video with transcript Video
Information

Request more information

NIST calibration documentation is available. Request now

Similar products you might be interested in

open-in-new Compare alternates
Drop-in replacement with upgraded functionality to the compared device
HDC3020-Q1 ACTIVE Automotive 0.5% RH digital humidity sensor, 0.19% long-term drift, 400 nA, 4-sec response time Automotive version, same functionality and accuracy
HDC3021 ACTIVE 0.5% RH digital humidity sensor with removable tape cover Removable tape for conformal coating and potting
HDC3022 ACTIVE 0.5% RH digital humidity sensor with permanent IP67 filter Permanent IP67 filter for water and dust protection
Similar functionality to the compared device
HDC2010 ACTIVE 2% RH ultra-small, low-power digital relative humidity sensor Ultrasmall 1.5-mm x 1.5-mm package
HDC2021 ACTIVE 2% RH ultra-low-power digital relative humidity sensor, tape cover Removable tape for conformal coating and potting

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

HDC3020EVM — HDC3020 evaluation module for temperature and humidity sensors

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 (...)

User guide: PDF | HTML
IDE, configuration, compiler or debugger

ASC-STUDIO-HDC3020 ASC studio for configuring all aspects of the HDC3020 humidity sensor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the HDC3020 humidity sensor.
Supported products & hardware

Supported products & hardware

Products
Humidity sensors
HDC3020 0.5% RH digital humidity sensor, 0.19% long-term drift, 400 nA, 4-sec response time, NIST traceable
Reference designs

TIDA-010254 — Battery-powered mmWave radar sensor with sub-1-GHz and Bluetooth® 5.2 reference design

This industrial reference design demonstrates the use of a battery powered IWRL6432 60-GHz mmWave radar with a sub-1 GHz or Bluetooth® 5.2 wireless communication. This design has been demonstrated with people-counting and tracking, and motion tracking applications from a Li-battery that send (...)
Design guide: PDF
Reference designs

TIDA-010253 — Battery control unit reference design for energy storage systems

This reference design is a central controller for a high-voltage Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery rack. This design provides driving circuits for high-voltage relay, communication interfaces, (including RS-485, controller area network (CAN), daisy chain, and Ethernet), (...)
Design guide: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DEF) 8 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos