Temperature measurement circuit with 5-channel low-power programmable sensor signal processor AD7714 and thermocouple

Published:2012/10/12 21:37:00 Author:Ecco | Keyword: Temperature measurement , 5-channel , low-power , programmable sensor, signal processor , thermocouple | From:SeekIC

In this application, AD7714 operates in buffered mode, allowing the front terminal to connetc with decoupling capacitor in order to filter the noise on the thermocouple lead. In buffer mode, the AD7714 common mode range is narrow, the differential voltage of thermocouple is in suitable common-mode voltage range, and AD7714's AIN2 input terminal should be biased to +2.5 V reference voltage.



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