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Adl5801 has 300mv dc bias voltage without input。Shouldn't it be 0 mV?

Question asked by on Apr 9, 2018
Latest reply on Apr 17, 2018 by huangzeyan

The following is the schematic diagram. 300mV is the voltage difference between IFCON and IFOP when R60 and R61 are disconnected and there is no input at both ends. And achieved the effect of mixing. Why does this 300mv bias voltage appear?