I refer to "Simple Op-amp measurement, Analog Dialogue", MT-042, MT-043, MT-101.
Also, I read a question, "PSRR test issue" which was asked on 2017.07.21.
The answer was that AC coupling by a 10 uF cap to measure high-frequency PSRR.
By the way, does that cap need to be 10 uF? what should I consider to decide the value of that?