AC Signal RMS vs. Peak Value

    A lot of times, we need to relate the signal peak-to-peak amplitude to its root-mean-squared value, this is required to understand the system performance impact caused by different aspects of signal characteristics. For example, when you are trying to estimate the maximum current carrying capability of copper traces, wire bonds etc. or how much power the system consumes, how much heat the system generates and need to be dissipated, you could be more interested in signal RMS values while signal peak-to-peak value is of more importance when you are trying to figure out the dielectric break down voltage or device punch through limit and you probably like to consider both parameters when you are interested in not only instantaneous value but also long term averaged power such as complying with IC electromigration design rules.
  
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