Electronic Design Update  |   To view this email as a web page, click here.
 
 
Electronic Design Update
June 29, 2021
 

Characters: Long-term consistent performance matters for humidity sensing applications

The exposed polymer of humidity sensors can be impacted by the environment, leading to drift over time. This article discusses the accuracy and long-term drift of humidity sensors and how these parameters affect system performance and lifetime.

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1624473238 Asc Sens Ths Sensors Hdc3 300x250 St
 

Products

 
1624457920 Hdc3020 Q12
 

HDC3020 humidity sensors offer industry leading 1.5% typical relative humidity accuracy while maximizing reliability with built-in resistance to contaminants and harsh environments.


 
1624457920 Hdc3020 Q12

Upgrade your Humidity sensor with improved accuracy and reliability

HDC3020-Q1 automotive humidity sensors offer industry leading 1.5% typical relative humidity accuracy while maximizing reliability with built-in resistance to contaminants and harsh environments.

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1624457920 Hdc3020evmhumiditysensor

Evaluate the HDC3020 humidity sensor family with the HDC3020EVM

The HDC3020EVM enables evaluation of the HDC3020 humidity sensor family with hardware for interface with a computer, break-off capability for connecting to a system and a GUI for configuration of features including drift correction.

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Videos

 

Overview of Relative Humidity Sensing

This TI Precision Labs video explains fundamentals of humidity and how to get started using TI's integrated temperature and humidity sensors.

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Physics of Humidity Sensing

This TI Precision Labs video explains the terminology behind the study of humidity, and the physics behind several humidity sensing technologies.

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Humidity Sensor Design Considerations

This TI Precision Labs video explains the factors to consider when designing a system with an IC humidity sensor. Including package selection, thermal design, RH accuracy and Hysteresis, case design, and environmental conditions.

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Humidity Sensor Storage and Handling

This TI Precision Labs video goes into detail about storage and handling recommendations for TI's family of humidity sensors.

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Whitepapers

This application brief describes the three-prong approach (polymer selection, protective cover offerings and drift correction) taken during development of the HDC3020 humidity sensors to optimize accuracy over system lifetime.        

 
 

Discover low power humidity sensing

This application note walks through how to improve efficiency and battery life when designing with the HDC3020 humidity sensor. Learn how to calculate average sensor current, reduce sensor current, and what system-level parameters to consider.

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85°C/85% Accelerated Life Testing in Systems Using Humidity Sensors

This white paper explores the 85°C/85% RH accelerated life test, its impact on RH sensors, and ultimately how to address conflicts when the same design needs both 85°C/85% tests and RH sensors.

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