Basic introduction of HTS221TR

• 0 to 100% humidity measurement range

• Operating voltage: 1.7 to 3.6 V

• Ultra-low power consumption: 2 μA @ 1 Hz ODR

• ODR range: 1 Hz to 12.5 Hz

• Humidity sensitivity: 0.004% rH/LSB

• Humidity accuracy: ± 3.5% rH, 20 to +80% rH

• Temperature accuracy: ± 0.5 °C, 15 to +40 °C

• Built-in 16-bit ADC

• 16bit temperature & humidity data output

• Support SPI&I2C digital output interface

• Factory Calibration

• Package 2 x 2 x0.9 mm

HTS221 internal block

HTS221 temperature and humidity data conversion

Each HTS221 has its own response characteristics. Each chip is calibrated in the factory according to the response characteristics, and the calibration coefficients are written into NVRAM . When in use, the characteristic slope of the IC is calculated by reading the low temperature point (H0_(T0)_OUT, H0_RH) and the high temperature point (H1_(T0)_OUT, H1_RH) , and the correct output of the data is obtained through the conversion coefficient.

If you have any questions about the use of temperature and humidity sensors, you are welcome to discuss at any time.

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