STMicroelectronics - Ultra-compact sensor for relative humidity and temperature applications (HTS221)

The ultra-compact STMicroelectronics HTS221 capacitive digital sensor is designed for relative humidity and temperature applications. The device includes a sensing element and a mixed-signal ASIC to provide measurement information via a digital serial interface. The sensing element consists of a polymer dielectric planar capacitor structure capable of detecting changes in relative humidity and is manufactured using a dedicated ST process. The HTS221 is housed in a small top-hat ground grid array (HLGA) package, which guarantees operation over a temperature range of -40C to + 120C. Applications include air conditioning, heating and ventilation, air humidifiers, refrigerators, wearables, smart homes and industrial automation.