Capacitive Digital Sensor

STMicroelectronics offers an ultra-small capacitive digital sensor for relative humidity and temperature

Image of STMicroelectronics' Capacitive Digital SensorSTMicroelectronics' HTS221 is an ultra-compact 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 temperature range from -40¡ãC to 120¡ãC.

Features

0 to 100% relative humidity range

Supply voltage: 1.7 V to 3.6 V

Low power consumption: 2 ¦ÌA at 1 Hz ODR

Selectable ODR from 1 Hz to 12.5 Hz

High rH sensitivity: 0.004% rH/LSB

Humidity accuracy: ¡À3.5% rH, 20 to 80% rH

Temperature accuracy: ¡À0.5¡ãC,15¡ãC to 40¡ãC

Embedded 16-bit ADC

16-bit humidity and temperature output data

SPI and I2C interfaces

Factory calibrated

Tiny 2 mm x 2 mm x 0.9 mm package

ECOPACK® compliant

Capacitive Digital Sensor

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Eval Boards

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