I need to measure the noise coming from a DC power supply (N6705 DC Power Analyzer) which is given as an input to the Comparator Present in my ASIC.
The voltage range will be from 500mv to 700mv.
My oscilloscope(Keysight,MSO-X 4054A) have AC RMS measurement capability.
I will be following the below procedure.
I will connect the DC power supply output to oscilloscope-->Set Coupling to AC--->set Amplitude level to 10mV/Division or low-->Then I will turn on AC RMS Measurement Button.
I will be using the active probe N7020A from Keysight.
I have a few questions regarding this.
Do I need to use Peak to Peak for Noise measurement?
If I enable DC Coupling will I get the proper noise measurement?
May I know using active probes is an option for good noise measurement?