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Same functionality with different pin-out 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 (Q100) qualified, higher accuracy (±0.5 %RH) in QFN package (2.5 mm × 2.5 mm)
HDC3021 ACTIVE 0.5% RH digital humidity sensor with removable tape cover Higher accuracy (±0.5 %RH) in smaller QFN package, with removable tape for conformal coating
HDC3022 ACTIVE 0.5% RH digital humidity sensor with permanent IP67 filter Higher accuracy (±0.5 %RH) in smaller QFN package, with permanent IP67 filter
HDC3020 ACTIVE 0.5% RH digital humidity sensor, 0.19% long-term drift, 400 nA, 4-sec response time, NIST traceable Higher accuracy (±0.5 %RH) in smaller QFN package

Product details

Relative humidity accuracy (typ) (%RH) 2 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Average supply current (typ) (µA) 0.105 Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
Relative humidity accuracy (typ) (%RH) 2 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Average supply current (typ) (µA) 0.105 Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
WSON (DMB) 6 9 mm² (3 mm × 3 mm)
  • Relative humidity range: 0% to 100%
  • Humidity accuracy: ±2% (typical), ±3% (maximum)
  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)
  • Sleep mode current: 50 nA (typical), 100 nA (maximum )
  • Average supply current (1 measurement/second)
    • 300 nA: RH% only (11 bit)
    • 550 nA: RH% (11 bit) + temperature (11 bit)
  • Temperature range:
    • Operating: –40°C to 85°C
    • Functional: –40°C to 125°C
  • Supply voltage range: 1.62 V to 3.6 V
  • Available auto measurement mode
  • I2C interface compatibility
  • Relative humidity range: 0% to 100%
  • Humidity accuracy: ±2% (typical), ±3% (maximum)
  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)
  • Sleep mode current: 50 nA (typical), 100 nA (maximum )
  • Average supply current (1 measurement/second)
    • 300 nA: RH% only (11 bit)
    • 550 nA: RH% (11 bit) + temperature (11 bit)
  • Temperature range:
    • Operating: –40°C to 85°C
    • Functional: –40°C to 125°C
  • Supply voltage range: 1.62 V to 3.6 V
  • Available auto measurement mode
  • I2C interface compatibility

The HDC2080 device is an integrated humidity and temperature sensor that provides high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The HDC2080 digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to be continuously monitoring the system. Combined with programmable sampling intervals, a low power consumption, and a support for a 1.8-V supply voltage, the HDC2080 is designed for battery-operated systems.

The HDC2080 provides high accuracy measurement capability for a wide range of environmental monitoring and Internet of Things (IoT) applications such as smart thermostats and smart home assistants. For designs where printed-circuit board (PCB) area is critical, a smaller CSP package option is available thru the HDC2010 with complete software compatibility with the HDC2080.

For applications with strict power-budget restrictions, Auto Measurement Mode enables the HDC2080 to automatically initiate temperature and humidity measurements. This feature allows users to configure a microcontroller into deep sleep mode because the HDC2080 is no longer dependent upon the microcontroller to initiate a measurement.

The HDC2080 device is an integrated humidity and temperature sensor that provides high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The HDC2080 digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to be continuously monitoring the system. Combined with programmable sampling intervals, a low power consumption, and a support for a 1.8-V supply voltage, the HDC2080 is designed for battery-operated systems.

The HDC2080 provides high accuracy measurement capability for a wide range of environmental monitoring and Internet of Things (IoT) applications such as smart thermostats and smart home assistants. For designs where printed-circuit board (PCB) area is critical, a smaller CSP package option is available thru the HDC2010 with complete software compatibility with the HDC2080.

For applications with strict power-budget restrictions, Auto Measurement Mode enables the HDC2080 to automatically initiate temperature and humidity measurements. This feature allows users to configure a microcontroller into deep sleep mode because the HDC2080 is no longer dependent upon the microcontroller to initiate a measurement.

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HDC2021 ACTIVE 2% RH ultra-low-power digital relative humidity sensor, tape cover Removable tape cover, p2p and software compatible
HDC2022 ACTIVE 2% RH ultra-low-power digital relative humidity sensor, IP67 filter Permanent IP67 filter, p2p and software compatible
Same functionality with different pin-out to the compared device.
HDC2010 ACTIVE 2% RH ultra-small, low-power digital relative humidity sensor Small footprint, software compatible, and lower cost

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet HDC2080 Low-Power Humidity and Temperature Digital Sensor datasheet (Rev. C) PDF | HTML Jul 1, 2021
Application note How to Use the Integrated Heater to Mitigate RH Drift PDF | HTML May 1, 2026
Product overview Humidity Sensor Comparison Guide PDF | HTML Jan 2, 2026
Application note TI Humidity Sensors: Programming & Integration Guide PDF | HTML Nov 3, 2025
Application note How to Debug RH Accuracy Issues in RH Sensors PDF | HTML Oct 30, 2025
Application brief Using RH to Derive Vapor Pressure, Dew Point, Absolute Humidity, and Enthalpy PDF | HTML Feb 9, 2023
White paper 85°C/85% RH Accelerated Life Test Impact on Humidity Sensors (Rev. A) PDF | HTML Sep 7, 2021
Technical article Why long-term consistent performance matters for relative humidity sensors PDF | HTML Jun 21, 2021
Application note Is a Protective Cover Needed for Humidity Sensors? PDF | HTML Apr 21, 2021
Technical article How accurate sensing in HVAC systems improves efficiency and saves consumers money PDF | HTML Jan 26, 2021
User guide HDC20XX Silicon User's Guide PDF | HTML Nov 30, 2020
Application note Compensating Temperature and Humidity Sensors in HVAC Systems PDF | HTML Oct 8, 2020
White paper How to optimize building and home automation designs for energy efficiency Apr 8, 2020
Technical article Understanding tamper detection sensors PDF | HTML Nov 18, 2019
Application note Low-Power Design Techniques for Temperature-Sensing Applications Jun 6, 2019
Application note Programming the HDC20X0 Devices Aug 29, 2018
Application brief Humidity Sensors Jul 9, 2018
Application note Humidity Sensor: Storage and Handling Guidelines Aug 28, 2017
Application note Optimizing Placement and Routing for Humidity Sensors (Rev. A) Mar 6, 2017

Design & development

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HDC2080EVM — HDC2080 Low Power Humidity and Temperature Sensor Evaluation Module

The HDC2080EVM (evaluation module) is an easy to use, plug-and-play, platform for evaluating the functionality and performance of the HDC2080 humidity and temperature sensor.  The EVM utilizes a USB interface with MSP430F5528 microcontroller to establish communication between the HDC2080 (...)
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IDE, configuration, compiler or debugger

ASC-STUDIO-HDC2080 — ASC studio for configuring all aspects of the HDC2080 humidity sensor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the HDC2080 humidity sensor.
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GUI for evaluation module (EVM)

SNOC028 — Sensing Solutions EVM GUI Tool v1.10.0

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Plug-in

SIMPLELINK-SDK-SENSOR-ACTUATOR-PLUGIN — Sensor and Actuator Plug-in for SimpleLink™ MCU SDKs

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Plug-in

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Simulation model

HDC2080 IBIS Model

SNAM225.ZIP (79 KB) - IBIS model
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Package Pins CAD symbols, footprints & 3D models
WSON (DMB) 6 Ultra Librarian

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