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Old 16th June 2006, 05:02 AM   #1
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Default SPICE Opamp models and ground reference

I'm trying to simulate some floating supply opamp circuits using supplied Spice models (I have Pspice trial edition and TopSpice full edition). I'm using floating supplies with the opamps, meaning their "ground" reference is NOT actual circuit ground.

==> The problem is, in the text for the spice models (as well as the supplied instance models for Pspice), there are several components inside the opamp model itself that are referenced to node 0 (ground). This violates the floating supply principle that I'm trying to use.

Is there anything I can do to compensate for this so that my opamp models are truly floating with no ground reference?
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