Is there some way to obtain a 'large-signal transfer function' for an amplifier? I'm designing a broadband amplifier and when I look at the transient waveform, there is a significant amount of overshoot and ringing, yet the small-signal analysis results in a monotonic low-pass transfer function. To obtain the large-signal performance, thus far I've just been running transient sim with sine wave input of different frequencies and looking at the output amplitude... which is a rather tedious process. Are there any built in tools in Cadence Virtuoso that can do this automatically?