Linda-
Did you check for a non-zero DC series resistance in your diode model?
You can get convergence problems when the diode currents get large.
- Lynne
-----Original Message-----
From: Linda Chu x3207 (by way of John Angulo <angulo@hyperlynx.com>)
[mailto:lindac@eng.adaptec.com]
Sent: Tuesday, September 05, 2000 4:42 PM
To: ibis-users@eda.org
Subject: DC convergence
Hi,
When DC sweep range from -Vcc to Vcc*2 on the PULLUP/PULLDOWN
simulation, it has convergence problem. I try to use the alternative
method is to do an AC, but the SPICE-IBIS convertor doesn't recognize
the spice output format. So when it generated the IBIS model, it puts
out N/A in the current table. Is there anyone can help me on this?
thanks
linda
Received on Wed Sep 6 11:43:36 2000
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