The ultra-low-power humidity sensor SHT40 is equipped with CMOSens technology, which provides a complete sensor system on a single chip. It has a fully calibrated digital I2C fast-mode plus interface and covers operating ranges from 0 to 100% RH and from -40 to 125 °C with accuracies of ±1.8% RH and ±0.2 °C. With the extended supply voltage range from 1.08 to 3.6 V and 400 nA average current, the sensor is well-suited for mobile and battery-driven applications. The small size in a robust DFN housing enables integration into challenging designs while meeting the high reliability demands, as demonstrated by the JEDEC JESD 47 qualification.
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