Subject: Re: [IBIS-Users] Question On Input buffers
From: Kannan Srinivasagam (pks@cypress.com)
Date: Thu May 15 2003 - 09:36:14 PDT
Hi,
I reran the spice sims. There was something wrong in the netlist
itself. The diode was some reason was not turning on. It is working now when
I reextracted the netlist.
Thanks for all your help.
Kannan
Syed Huq wrote:
> For a GND Clamp at -1.5V, you should see a large current and not in uA.
> It means your GND Clamp(if present), did not turn on.
>
> When you say, "working fine with spice sims", what current value do you
> get at -1.5V ?
>
> Syed
>
> On Wed, 2003-05-14 at 14:09, Kannan Srinivasagam wrote:
> > Hi,
> > Could someone clarify why my input buffer gnd clamp IV table
> > starts from -1.50ua at -1.5V goes to 0 at 0V and goes back to 1.5ua at
> > 1.5V. Is this correct. I believe it should start from a specific value
> > and go down to 0V. Just want to know what might be wrong : is it my
> > spice netlist( working fine with spice sims) or my .s2i file.
> >
> > Thanks
> > Kannan
> >
> >
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