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finding the output impedance of non-inverting amplifier

Question asked by Mir on Jun 15, 2016
Latest reply on Jul 13, 2016 by krisf

I am using AD704 to make a non-inverting amplifier. A series 50ohm resistor is placed from the output of the IC to the output node of the package. In circuit, the resistor measures 50ohms. When tested in No-load and 50% loaded condition (as recommended by some websites) anomalous readings are obtained.

What is the correct setup for measuring output impedance?