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AD7171: voltage exitation for thermistor


I proposed the following circuit to our customer for thermistor input.

     Requirment: cost, simple circuit, about 16bit p-p resolutions.

On the other hand, in Maxim's application note,

The same voltage excitation, but the connection is different.



Are there advantages and disadvantages in each method?
I think MAXIM's method has a wider dynamic range and ADI's method is high precision.

Please advise me to make the best suggestions for customers.


Best regards,




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