I am able to find the settling time of single ended opamp by placing it in unity gain configuration mode. but now if I want to find the settling time for fully differential opamp then can it be simulated using cadence tool. If any one knows it then please suggest me the steps that will be helpful. Also you can mention the links.
Similar procedure: you put the diffOpAmp into your application configuration (e.g. unity gain) and measure the settling time (which may depend on input voltage step and output load). See this tutorial: View attachment Cadence_Characterizing_Differential_Amplifiers.pdf