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ADS1220: ADS1220 thermocouple measurement

Part Number: ADS1220
Other Parts Discussed in Thread: TIDA-00168,

Hi

My customer has some queries need your help:

when touches the thermocouple the temperature increase quickly, put the thermocouple into the hotwater the  temperature increase about 10C. 

From TIDA-00168_Firmware what's the meaning of TCtemperature -= ADS1220TCdata?

Attached the customer's test code.costomer's test code.rar

Please help check the attached the ADS1220 schematic.SCHEMATIC1 _ 04 ADS1220.pdf

Thanks

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