Thermocouple amplifier

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Raees

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I am not sure what exactly you are looking for but I will go over it briefly.

So the resistor across the input sets the gain of the amplifier (there is a formula for it in the datasheet). You have your reference voltage divider with tunable resistor (Potentiometer) and biased thermocouple that is feeding into the inputs. The amplifier appears to be inverting (the positive is to ground). The circuit diode in the thermocouple interface is for the cold junction compensation (the temperature reference for the circuit for offsets). So besides that what do you need to know more or have questions on?
 

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