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INA326: Thermocouple Amplifier

Part Number: INA326


Good Day. I have a customer who is working with INA326. Please see below his query for your reference. Thank you very much.

In app note SLOA123 (, page 1), it shows using an INA326 amplifier to interface to a thermocouple. For the RFI filter, it shows using series resistors. For these resistors, do they need to be matched better than 1%?

Best Regards,

Ray Vincent