[IBIS-Users] Fwd: FW: ddr103_v.scs true differential buffer IBIS modelling

Hi all


I am trying to model true differential buffer  following the “*Series model
approach”* at  http://www.vhdl.org/ibis/summits/oct03/muranyi.pdf. ).

I am assuming that a differential buffer should have some sort of
differential current that would flow from PADP to PADN when the two nodes
are at different voltages.



I am trying to sweep PADP and PADN voltages to see current between the two
PADS. However. the currents I see are in nano-Amps indicating that there is
almost no differential current. Current into PADN is almost independent of
DC-voltage forced on PADP. Is this an expected behavior or am I missing
something in this activity?


DC sweep is applied on padn and padp is kept at different voltages (-1.2 to
2.4 in steps of 0.4V) .



Regards

Shivani









*Detailed snapshots shown here  *



*https://www.blogger.com/blogger.g?blogID=1357760498839013626#editor/target=post;postID=2986411014708903686;onPublishedMenu=posts;onClosedMenu=posts;postNum=0;src=postname
<https://www.blogger.com/blogger.g?blogID=1357760498839013626#editor/target=post;postID=2986411014708903686;onPublishedMenu=posts;onClosedMenu=posts;postNum=0;src=postname>*

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.


--------------------------------------------------------------------
|For help or to subscribe/unsubscribe, e-mail mikelabonte@eda-stds.org
|or ibis-request@eda-stds.org
|
|IBIS reflector archives exist under:
|
|  http://www.eda-stds.org/ibis/email_archive/ Recent
|  http://www.eda-stds.org/ibis/users_archive/ Recent
|  http://www.eda-stds.org/ibis/email/         E-mail since 1993