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AD970x output

Question asked by peter.clerico on Apr 21, 2016
Latest reply on Jul 28, 2016 by larrywelchusa

I'm obviously missing something fundamental with figure 89 of the AD970x data sheet - if REFIO is driving 1V to the noninverting input of the op amp, it appears V_iouta will always be >1V;  isn't this outside of its compliance range?

Can you help me understand the operation of this circuit?