Could you share the experience of PSRR to us , such as test bench, method, tips, used instrument in low frequency(x00 KHz level). Thank you very much. We have refer to MT-043 for ampilfier, but it only works in low frequency.
Here is an example of PSRR vs frequency recommended circuit.
The supply voltages, VDD and VSS are powered in dual supply configuration.
A network analyzer is used such as HP3577A. Connect the OUTPUT port and INPUT R port of the Network analyzer to Vin node of the test circuit.
Connect INPUT A port of the analyzer to node A in the test circuit. The switch is used to toggle between PSRR- and PSRR +. Sweep the analyzer across frequency and get the ratio of R/A to get Power supply rejection.
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