[SI-LIST] Measuring uV signals in PSRR test

Hi,
Good morning! I have been measuring PSRR for LDOs. It is of the order of 70dB, 
so I need to measure AC signal of about 300 uV from 10Khz to 500Khz. 

What can be a good way to measure the low amplitude AC signals? Please can 
anyone help me in this.

Thanks for help,
Best Regards,
Asif



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