How can I get the input referred noise of dynamic comparator by pnoise?

Hello everyone,

I need to calculate dynamic comparator noise with pnoise, I have read "Keeping Things Quiet: A New Methodology for Dynamic Comparator Noise Analysis" and follow the steps, but I just only get output noise.

There is a statement in Spectre manual : "If the input-referred noise or noise figure is desired, specify the input source by using the iprobe parameter. For input-referred noise, use vsource or isource as the input probe;" "Use refsideband=0 when the input and output of the circuit are at the same frequency(such as with amplifiers and filters)."

but I still can't find out the input referred noise in the simulation result, I can just only see "out" signal , as below: 

I use the following pnoise, pss settings:

simulator lang=spectre
parameters p_vdif=1m ratio=50
sw_vdif sweep param=p_vdif start=1m stop=10m dec=2 {
pss_comp pss period=p_tp harms=100
sampleN_comp (OUTP_LAT OUTN_LAT) pnoise start=0.1 stop=0.5/p_tp noisetype=pmjitter \
crossingdirection=rise thresholdvalue=(p_vdif*ratio) \
pnoisemethod=fullspectrum refsideband=0 iprobe=VINP
}

OUTP_LAT &  OUTN_LA are outputs of comparator and VINP is the voltage source applied to  comparator input , other save settings :

saveOpt options save=allpub currents=all useprobes=yes
save all
save *

Any ideas where I'm going wrong with the simulation setup?

Thanks