AD7793: external bias voltage connection to thermocouple

Document created by analog-archivist Employee on Feb 23, 2016
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Do you have any schematic example to show the customer how to connect the
external bias voltage during thermalcouple measurement?


The bias voltage is brought out on AIN2-. It is then applied as a common mode
signal to AIN1+ and AIN1-. With this configuration, the bias voltage will not
introduce and error.