Analogue, Mixed Signal, LSI


Digital humidity sensor withstands harsh conditions

24 November 2021 Analogue, Mixed Signal, LSI

Sensirion is expanding its series of fourth-generation humidity sensors to include the SHT4xI-Digital sensor platform, which has been designed specifically for challenging industrial applications. The series consists of two versions with differing accuracy – the SHT40I and SHT41I – which offer 5 V supply voltage, high reliability and extended ESD protection.

SHT4xI-Digital is based on Sensirion’s proven CMOSens technology, which ensures remarkable reliability as demonstrated by extensive accelerated lifetime tests such as 85°C/85% RH for 1000 hours. The sensor enables seamless integration with its wide operating voltage range, small size and robust housing. Based on its features and Sensirion’s advanced humidity sensing expertise, SHT4xI-Digital is ideal for conducting measurements under harsh conditions in industrial applications.

Like the SHT4x series, the sensors offer high accuracy specifications and cost-effectiveness. Their CMOSens technology provides a complete sensor system on a single chip, with a fully calibrated digital I2C fast mode plus interface. The sensor platform covers operating ranges from 0% to 100% RH and from -40°C to 125°C with a supply voltage extending from 2,3 to 5,5 V.


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