This paper will present methods of measuring dynamic harmonic distortion using filter banks and a staircase signal. The harmonic distortion is measured in real time at each level of the staircase signal. For measuring dynamic time varying 2nd and 3rd order intermodulation distortion, a low frequency sinewave signal is combined with a higher frequency signal. Also, the FM distortion of the intermodulation distortion signals is measured. FM distortion in current mode op amps is measured. Also FM distortion is measured in an op amp with conventional Miller compensation then measured later in an op amp with two-pole compensation. Finally, Volterra Series distortion analysis is included as part of an equation that describes phase or frequency modulation effects in a nonlinear system.
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