Humidity/Temperature Sensors Consume Little Power

Humidity/Temperature Sensors Consume Little Power

December 5, 2013

Heralded as the market’s “most energy friendly, easiest-to-use humidity sensors, Silicon Labs’ Si701x/2x family of relative humidity and temperature sensors combine a standard CMOS mixed-signal IC with a reliable technique of measuring humidity using a polymer dielectric film. Using a 3.3V supply voltage and delivering an eight-bit resolution, the Si701x/2x sensors consume just 1.9 µW average when taking one sample per second, reportedly six times lower than comparable RH sensors. They maintain ±3% RH maximum accuracy over a 0 to 80% range of humidity and a ±0.4°C maximum temperature accuracy over a -10°C to +85 °C temperature range. Additionally, long-term RH drift is less than 0.25% RH per year. Available in 3 mm x 3 mm QFN packages, pricing for Si701x/2x RH sensors begins at $2.13 each in 10,000-unit quantities. For more information, visit  

Silicon Labs
Austin, TX


CompanySilicon Labs


Sensors 2017 Call for Speakers



Twitter Feed

Find It Fix It Forum

Sensors invites you to join the Findit-Fixit Forum, where you can get answers to your sensing questions—concerning technologies, products, methods, applications, and services--and also offer help to your fellow engineers. The Forum covers all kinds of topics, from the basics to the extraordinary.

Join the discussion!

© Copyright 2016 Questex, LLC. All Rights Reserved. Sensorsmag. Privacy Policy | Terms of Use

If you are having technical difficulties or considerations, please contact the webmaster.