1) connect a ideal DAC block to your ADC netlist(o/p of ADC given to ideal DAC)
simulate the circuit.
now you will have A2D converted signal and corresponding D2A signal.
i.e analog --> A2D(digital bits) -->D2A(reconstructed analog signal)
plot the results of d2A,
drag and drop this reconstructed signal to box next to signal
under input parameters of toolbox.
give you are sampling rate(fs), input freq(fin).
then under dc analysis,
select fitting method,
then click eval. dc.
same for next analysis also.
now you can see the results under results window and plot them..
2) in spite of using ideal d2a,
you can use d2a tool box in the same tool.
rest are same.