plot resistance ( v vs i)of an active load with control voltage

[Debasish_Halder]

how can i plot the graph like shown in the pic. the resistance plot of an active load with control voltage.

 

[D.A.(Tony)Stewart]

Use a suitable current shunt resistor to measure Ires.=Vres/R

Then digitize or manual measure or use XY scope with biased AC input.

 

[Debasish_Halder]

sir,
I am new in cadence virtuoso.It will be kind enough if you provide me detail steps for the plot....