Accuracy boost for humidity and temperature sensor

Accuracy boost for humidity and temperature sensor

New Products |
By Nick Flaherty

Sensirion in Switzerland is launching two new versions of its fourth-generation humidity sensors.

The SHT41 and SHT45 offer further improved humidity and temperature accuracy specifications with typical accuracies of ∆RH = ± 1% RH and ∆T = ± 0.1 C,

Like the previous SHT40, the sensors build on an optimized CMOSens sensor system on a single chip, with a fully calibrated digital I2C fast mode plus interface. The sensors cover operating ranges from 0 to 100% RH and from -40 C to +125 C.

With the extended supply voltage range from 1.08 V to 3.6 V and 400 nA average current, the SHT4x is aimed at mobile and battery-driven applications. The small size in a robust DFN housing enables integration into challenging designs while meeting the highest reliability demands, as demonstrated by the JEDEC JESD47 qualification.

“With the SHT41 and SHT45 humidity and temperature sensors, we’re completing the portfolio of Sensirion’s best-in-class fourth-generation humidity sensors. With our long-established 100% end-of-line testing, we are proud to guarantee our given accuracy specifications for every single device shipped. This has proven fundamental for the trust that our global high-tech customers place in us, whether they come from the medical or the automotive industry. Even during the ongoing semiconductor shortage situation, our Swiss manufacturing site provides exceptionally short lead times, and thereby guarantees the success of our customers’ projects,” says Maximilian Eichberger, Director Product Management Humidity and Temperature Sensors at Sensirion.

The SHT41 is available in tape and reel packaging, combined with its suitability for standard SMD assembly processes for high-volume applications. The SHT45 is expected to ship in Q1 2022.

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