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Texas Instruments HDC302x/HDC302x-Q1 Digital Humidity Sensors are integrated capacitive-based relative humidity (RH) and temperature sensors. It provides high-accuracy measurements over a wide supply range (1.62V to 5.5V) and ultra-low power consumption in a compact 2.5mm × 2.5mm package. The temperature and humidity sensors are 100% tested and trimmed on a production setup that is NIST traceable and verified with equipment 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 the device to within accuracy specifications. Auto measurement mode and ALERT feature enable low system power by maximizing MCU sleep time for battery IoT applications. Four different I2C addresses support speeds up to 1MHz. A heating element is available to dissipate condensation and moisture.
The Texas Instruments HDC3020/HDC3020-Q1 is an open cavity package without a protective cover. Two device variants have a cover option to protect the open cavity RH sensor (HDC3021/HDC3020-Q1 and HDC3022/HDC3021-Q1). The HDC3021/HDC3021-Q1 has removable protective tape to allow conformal coatings and PCB wash. The HDC3022/HDC3022-Q1 has a permanent IP67 filter membrane to protect against dust, water, and PCB wash. The HDC3020-Q1 devices are AEC-Q100 qualified for automotive applications.
