Hi Burak, The following document explains in detail how to perform K-type thermocouple measurements with the ADS1120 and how to perform cold junction compensation: K-type thermocouple measurement circuit with precision ADC (Rev. A) So you can successfully read the thermocouple voltage, but are having trouble retrieving the ADC's internal temperature? Can you send logic analyzer captures of your digital communication when attempting to read data for the internal temperature sensor? Are you setting the following bit before retrieving the data? Best Regards, Angel
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