HTS221

HTS221 Capacitive digital sensor for relative humidity and temperature Datasheet - not recommended for new design HL GA-6L (2 x 2 x 0.9 mm) Features  0 to 100% relative humidity range  Supply voltage: 1.7 to 3.6 V  Low power consumption: 2 μA @ 1 Hz ODR  Selectable ODR from 1 Hz to 12.5 Hz  High rH sensitivity: 0.004% rH/LSB  Humidity accuracy: ± 3.5% rH, 20 to +80% rH  Temperature accuracy: ± 0.5 °C,15 to +40 °C  Embedded 16-bit ADC  16-bit humidity and temperature output data  SPI and I²C interfaces  Factory calibrated  Tiny 2 x 2 x 0.9 mm package  ECOPACK compliant Description HTS221 is in the process of being terminated and is not recommended for new design. The candidate replacement is SHT40-AD1B from Sensirion. A deep-dive transition guide, technical note TN1426, is available on www.st.com, providing a high-level reference to guide the user in replacing STMicroelectronics HTS221 sensor with the SHT4x sensor family from Sensirion as a high-quality alternative. The HTS221 is an ultracompact sensor for relative humidity and temperature. It includes a sensing element and a mixed signal ASIC to provide the measurement information through digital serial interfaces. The sensing element consists of a polymer dielectric planar capacitor structure capable of detecting relative humidity variations and is manufactured using a dedicated ST process. The HTS221 is available in a small top-holed cap land grid array (HLGA) package guaranteed to operate over a temperatu...