Hi, I am trying to simulate the Impulse Sensitivity Function (ISF) of a clocked comparator using SpectreRF as in Kim's paper "Impulse Sensitivity Function Analysis of Periodic Circuits". I’ve already obtained the ISF using the transient-based method, but I would like to compare performance and results. I am not very familiar with PSS or PAC, and all the information I've found in other forums is more geared towards oscillators.

Does anybody know about a good tutorial, or better yet, has anybody tried to reproduce this method?

(Link to the paper: http://www.cecs.uci.edu/~papers/iccad08/PDFs/Papers/05C.2.pdf)

Hi PinGuine, thank you for your reply. By strobe component, are you referring to the clock signal (vpulse source)? The other sources I have are only DC sources: VDD, VCM to bias the inputs, and a dc voltage between the inputs to cancel input offset, is this setup correct?

For the PAC analysis, on which source should I apply the PAC magnitude of 1?

Can you give me more details on how to do the integration you mentioned on step 3?

@kerekuto - the slide 20 of the classnotes on dynamic comparators here https://bspace.berkeley.edu/access/content/group/814408c5-19c5-454c-ab95-454a58b... illustrates the idea of strobing the output at fixed time (t_sub_0 in the paper) after the edge of the clock (that sets the frequency to W_sub_c).

and as per my understanding the pac input of magnitude 1 will have to applied at the input of the your clocked comparator.   

If you have access to the IEEEXplore, you can probably still find the
paper.

Be aware that the measurement is non-trivial even in simulation. There
are simpler methods based on frequency domain simulations.