RE: [IBIS-Users] IBIS Temperature range


Subject: RE: [IBIS-Users] IBIS Temperature range
From: Mike LaBonte (milabont@cisco.com)
Date: Wed Aug 13 2003 - 10:59:41 PDT


In theory an IBIS model produced for one supply voltage works over a range
of supply voltages. In practice, you will probably find that producing the
same model using s2ibis2 with different supply voltages yields different
models. I prefer not to use an IBIS model at any voltage other than the one
it was produced for.

Mike LaBonte

-----Original Message-----
From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org]On
Behalf Of Gavin Cosgrave
Sent: Wednesday, August 13, 2003 10:09 AM
To: ibis-users@eda.org
Subject: [IBIS-Users] IBIS Temperature range

Hi all,
        I am generating an IBIS model for a part with a Vdd spec of
2.5 to 5.5 Volts. My question is whether I should generate two IBIS
models, one with Voltage Range 4.5, 5, 5.5, and the other with 2.5,
2.7, 3?

        The reason I ask is that if someone is using a Vdd=5V system,
and if I extract the model with voltage range 2.5, 5, 5.5, the min
will be well below anything they ever see.

        Apologies if this question has already been answered, but I
can't find anything in the archive.

Thanks,
Gavin.

--
Gavin Cosgrave,
Analog Devices, Building 2200, Cork Airport Business Park,
Cork, Ireland.
Tel:+353-21-4917906
Internal:6021-7906
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