TI's new humidity sensor delivers ultra-high reliability with built-in anti-fouling protection to withstand harsh operating environments

     Texas Instruments has launched a new family of advanced humidity sensors that not only provide the industry's highest reliability and accuracy, and ultra-low power consumption, but also provide built-in protection mechanisms through the sensing element. With the HDC3020 and HDC3020-Q1, engineers will be able to create more reliable industrial and automotive systems that resist potential damage from moisture and respond to changing humidity conditions as needed.

     Moisture can affect system performance and product life in applications such as automotive, appliances, and medical devices. Whether extending the life of products during transport and storage, preventing fogging of car cameras, or controlling air flow and quality in buildings, the need for a more reliable, safer, and more comfortable environment is increasingly Many engineers will use relative humidity (RH) sensors in related systems to measure ambient humidity.

     Compared to existing relative humidity sensors, the HDC3020 and HDC3020-Q1 provide higher relative humidity measurement accuracy and reduced long-term error, maintain data integrity under a variety of stress conditions, and are the first in the industry to provide integrated Cope with accuracy drift due to natural aging, environmental stress, or contamination

     The HDC3020 and HDC3020-Q1 have lower drift than comparable devices under extreme conditions, less than 0.21% relative humidity accuracy drift per year, and less than 5% relative humidity drift due to temperature and humidity stress (at up to 85% relative humidity and 85°C) test below). This consistent and long-lasting accuracy extends system life without the need for frequent sensor replacement or recalibration. When exposed to stress or contaminants, the sensor also provides a second line of defense: using an integrated drift correction technology, which even removes small precision drifts in the initial stages of the sensor. Low temperature drift is especially important in long-life applications as it allows for better performance and higher reliability over time.

     Both the HDC3020 and HDC3020-Q1 provide higher accuracy over the entire supply voltage range of 1.62V to 5.5V and an ultra-wide temperature and humidity range of ±1.5% relative humidity (National Institute of Standards and Technology procedures authenticating). This high accuracy enables more precise system control, ensuring that the system only operates when necessary, increasing efficiency.In addition, the HDC3020 and HDC3020-Q1 are available in a variety of pin-to-pin compatible package covers, such as removable polyimide tape covers and IP67-rated fixed filter covers. These covers protect the device from ingress dust and moisture during assembly and system operation, and help the sensor maintain accuracy in contaminated environments.

     The HDC3020 and HDC3020-Q1 provide nanoamp ultra-low power consumption over a wide supply voltage range of 1.62V to 5.5V, enabling low-power operation in active active and sleep modes. Automatic measurement mode supports periodic humidity sensing to capture data while the rest of the system sleeps, further maintaining system battery life, ideal for cold chain data loggers, wirelessly connected environmental sensors such as air quality monitors, smart homes or buildings applications such as wireless sensor nodes) or IP network cameras.