RE: [IBIS] [IBIS-Users] pass-trans curves

Fabio

This is definitely a case where the series model is the appropriate
solution.

Tom Dagostino
Teraspeed(R) Labs
13610 SW Harness Lane
Beaverton, OR 97008
503-430-1065
tom@teraspeed.com
www.teraspeed.com

Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
401-284-1827

-----Original Message-----
From: owner-ibis@server.eda.org [mailto:owner-ibis@server.eda.org]On
Behalf Of Fabio BRINA
Sent: Thursday, April 27, 2006 4:06 AM
To: ibis-users; ibis
Subject: [IBIS] [IBIS-Users] pass-trans curves



Hi  IBIS  expert,

I have to modelling a multiplexer with only
one input D  and two  output S1, S2.
the equivalent circuit is in the attachments.
( note that between  D and S1 there is no buffer
  structure , but only  a pass-transistor, the same
  between D and S2 ).

I have characterized  EN,  D , S1 , S2 as input model type
(only clamp curves) and  S1  S2  are characterized
through  [series Mosfet].
Is this a correct and complete characterization ?

if  you think that S1 and S2 have to been associate to
output model type, in which way I can extract pullup
, pulldown , rising , falling curves, if I haven't got a typical
cmos structure as in this case?

I hope that my exposition is clear!

thanks,
Fabio


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