[sdiy] Spice model for CA3080 OTA

[David G Dixon]

I use Multisim, and the 3080 model in that software is broken.  The 13700
model works fine, though. 

> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl 
> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Pete Hartman
> Sent: Tuesday, October 15, 2013 8:50 PM
> To: synthdiy diy
> Subject: [sdiy] Spice model for CA3080 OTA
> 
> I'm looking for a CA3080/LM3080 Spice model.  I'm 
> troubleshooting a few ARP 4023 filters that all seem to 
> exhibit the same basic problems, AND building it on a 
> breadboard (albeit with slightly different values/components 
> because of what I have on hand) I get the same results--no 
> sound.  Not on the output, not on the end of the first filter 
> stage, nowhere other than the input.  Between the breadboard 
> and being told that this same PCB has been built and worked, 
> I don't expect I have a circuit board problem.  I didn't do 
> the builds myself, BTW.
> 
> Next step is to try and look at the filter in LTSpice so I 
> can see a "working" model, but while I can find .asy and .asc 
> files (from LTSpice on Yahoo, mostly) I have yet to find 
> something with a subckt or anything that looks to my 
> (admittedly not very Spice savvy) eye like a model.  I have 
> tried looking directly at Intersil and TI and had no more 
> luck there than with google.
> 
> If someone has one they can share, that would be great.  If 
> someone has a suggestion for different simulation software 
> that is 1) not greatly expensive 2) includes OTA models, and 
> 3) runs on Mac without too many hoops (LTSpice came in a WINE 
> emulation wrapper, just had to drop it in place), that would 
> be welcome as well.  I certainly don't know Spice well enough 
> to be committed to it.
> 
> Thanks...
> 
> Pete
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