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HDC2022

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Low power humidity and temperature digital sensor with permanent filter

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Product details

Parameters

Relative humidity accuracy (Typ) (%RH) ±2 Temperature accuracy (Typ) (°C) ±0.2 Relative humidity operating range (Typ) (%RH) 0 - 100 Supply voltage (Min) 1.62 Supply voltage (Max) 3.6 Average supply current (Typ) (uA) 0.55 @ 1 sample / sec Operating temperature range (C) -40 to 125 Interface type I2C Rating Catalog open-in-new Find other Humidity sensors

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Features

  • Factory-installed IP67 rated water and dust protection cover
  • RH measurement range: 0% to 100%
  • Temperature measurement range: –40°C to 125°C
  • Humidity accuracy: ±2% (typical), ±3% (maximum)

  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)

  • Supply voltage range: 1.62 V to 3.6 V
  • I2C interface compatibility
  • 50 nA sleep mode current
  • 550 nA average supply current (11-bit accuracy option, 1 measurement/second)
  • Continuous conversion or one-shot measurement mode

  • Backward-compatible with HDC2080

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Description

The HDC2022 is an integrated relative humidity and temperature sensor with a factory-installed PTFE membrane cover over the opening of the relative humidity sensor. The cover is a hydrophobic micropourous PTFE foil that protects against dust and water according to IP67 specifications. The cover is designed to adhere to the package over lifetime operation while maintaining the same response time as a sensor without the membrane. The cover has a filtration efficiency of 99.99% down to a particle size of 100 nm.

The device is backward-compatible with the HDC2080, providing 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 digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to continuously monitor the system. Combined with programmable sampling intervals, low power consumption, and 1.8-V supply voltage support, the is designed for ultra-low power battery-operated systems.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet HDC2022 High-Accuracy, Low-Power Humidity and Temperature Sensor datasheet (Rev. A) Jun. 26, 2020
Technical articles Exploring advancements in industrial and automotive markets with 60-GHz radar Aug. 03, 2020
User guides HDC2022EVM User's Guide Dec. 20, 2019
Technical articles Understanding tamper detection sensors Nov. 18, 2019
Application notes Programming the HDC20X0 Devices Aug. 29, 2018
Technical articles Why capacitive isolation: a vital building block for sensors in smart cities Jan. 16, 2018
Application notes Humidity Sensor: Storage and Handling Guidelines Aug. 28, 2017
Application notes Optimizing Placement and Routing for Humidity Sensors (Rev. A) Mar. 06, 2017
Technical articles Time-of-flight measurements using high-performance time-to-digital converters Jul. 31, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
59
Description
The Texas Instruments HDC2022EVM evaluation module (EVM) enables designers to evaluate the operation and performance of the HDC2022 Relative Humidity and Temperature Sensor. The EVM hosts an MSP430F5528 microcontroller (µC) as well as the HDC2022. The µC is used to control the HDC2022 (...)
Features
  • Streaming relative humidity and temperature measurements
  • Data logging
  • Full register access
  • USB plug & play
  • Detachable sensor section for prototype remote operation
EVALUATION BOARDS Download
document-generic User guide
59
Description
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 device (...)
Features
  • Streaming relative humidity and temperature measurements
  • Data logging
  • Full register access
  • USB plug & play
  • Detachable sensor section for prototype remote operation

CAD/CAE symbols

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