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This seems to work. G=100MEG seems a bit much. * Ideal Fully Differential OpAmp * /g/LTspice/topic/50198770#msg46663 * .subckt D_OpAmp inp inn outp outn vcm R1 outp n01 1 R2 n01 outn

Correct. Something simple that won't have any convergence issues.

Well, it's very difficult to have 'comprehensive' without 'complex', unless you are prepared to write your own models, or add real-life parameters to existing simpler models.

But you're not looking for a model of a real-life amp, right? I think you said you wanted an ideal model.? That probably means it is lightweight and should simulate fast. Andy

Interestingly, today I am reading "The Chan inductor does not currently directly support Mutual Inductance ( https://ltwiki.org/index.php?title=Mutual_Inductance ) , so unless only a single-winding

The BIBO models from TI are incredibly complex. They model? lot of parameters. **** * AC PARAMETERS ** * CLOSED-LOOP OUTPUT IMPEDANCE VS. FREQUENCY (Zout vs. Freq.) * CLOSED-LOOP GAIN AND

What I mean is that there are few real-life BIBO opamps,from which SPICE models with real-life features, such as offset and PSRR could be produced. -- This email has been checked for viruses by AVG

Here is the thread I found on fully diff OpAmps /g/LTspice/topic/50198770#msg46663

XSPICE models are minimalistic and designed for speed. Complex models would slow simulations to a crawl. In this case the "XSPICE way" for making a fully differential OpAmp creates a model with

A model that would work for both LTspice and any Spice 3 simulator. The model will also be used in mixed-mode simulations with XSPICE models.

Hello John W. I have uploaded the complete Robertugo/SwitchAna files from my personal archive. It appears to contain all that is needed for the 4051, 52 and 53 parts. I hope this helps.

Yes, because it's quite easy, and probably cheaper, to use 2 or 3 sections of a quad opamp to make a good balanced-in/balanced-out circuit. -- This email has been checked for viruses by AVG antivirus

Tom, Maybe you did not understand my question. Are you looking for a model to run in LTspice, or are you looking for a model to run in XSPICE (or other SPICE programs)? The ideal op-amp models that

The generic Spice model would be usable in LTspice or Spice programs that support XSPICE. I found 2 on this forum from 2011 using various search terms. There are many choices for an generic OpAmp with

I am a little confused about the request.? Does that mean you want a model that will be used in XSPICE?? Or one for LTspice that behaves similarly to a model you already have for XSPICE? If it is

Looking for ideal fully differential amplifier spice model for XSPICE simulations. The one I have based on the XSPICE "gain" code model doesn't have any CMRR or care if outputs are swapped. Anything

Andy, I had to do a deeper search in my archive, but found them. I uploaded a newer zip file with the missing asy files. Mike

Story of my life! That's why I usually use 'JMW' rather than 'JW', but at one time there were at least three people called John Michael Woodgate (only very distantly related, if at all) in Britain. --

Sorry!? That was the other John W (Waugaman). Andy ( #DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2 )

I can live without them, and I'm sure Andy will provide all the help you need. -- This email has been checked for viruses by AVG antivirus software. www.avg.com