CAN HSPICE do the design of 1 Ghz ADC simulation.?

hi
i am having the hspice simulator and i want to design the 1GHz 6bit ADC for my UWB in TSMC 180nm RF PDK.
my question=> if i use TSMC 180nm RF hspice.and if i include this file into my HSPICE simulator and start the design of that ADC '> can i design this way correctly.?
because i am having the HSPICE simulator which is not the rf simulator.
so by adding the RF model file would i be able to design the circuit correctly.
if the answer is no then my assumption is that in the 1Ghz adc i dont need to run the s parameter analysis or pss or pxf analysis.
so i can do the design by usign the Hspice .
plz revert back..
regards

Dear manissri :

You can design 1Gha ADC by hspice, It is coorect for use tsmc RF model . Do't need to run S-parameter, Just use run ADC method . like SNR.SFDR , It is ok.

please put ur feedback on this question.
it would be highly appreciable.
regards