opa1633.lib ?

I don't understand the request; the .tsc file is on their website.

hi yes that's what i have.  But there is alot of character symbols which has nothing to do with the spice model contents.   I just noticed you say in the instructions "Within the Tina-TI software".   FYI, I have macs and no windows machines. Do I need to install Tina-TI to get the proper Spice model file? 

thankx you for replying

The .tsc file is a Tina TI format file for a schematic that uses that OPA part. It will have the SPICE model embedded in it. I have not used Tina TI in ages (and don't have it installed currently) so I cannot check if you can export or copy the model from there, but I believe Tina TI is free simulation software to build basic schematics up to a small component limit.

ronyd said:

FYI, I have macs and no windows machines

You can probably run it with wine. 

This post, by shabaz () talks about extracting the Spice model - I guess it was a while ago and his memory is going, bless!  KiCad 8: Working with Circuit Simulations! Perhaps you have the file still stored somewhere Shabaz?  

Hi Andrew,

Ah, well spotted! I had not realized I'd done that. However, I took a look just now, and realized the reason that wasn't uploaded  : ( The TI SPICE content has a copyright notice in it, so I think that scared me off uploading it to GitHub (GitHub can delete entire accounts if people upload copyrighted material).

I don't know of a good solution, other than downloading Tina-TI and running that to extract the model unfortunately : ( (Or TI to place a copy on their website).

You could be right, though there are a lot of tutorials on the net describing how to do it.  Tis forum seems to be down at the moment.  If you open the .tsc file (in TextEdit on the Mac)  it is possible to identify the model within it.  It *may* be possible to copy out directly and paste it into a new file but the formatting is off.  It's not clear either how much is required as there are a lot of sub circuit descriptions embedded.

This post on a TI forum contains a zip file of a PSpice model for this op amp. https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1484989/opa1633-opa1633dgnr?tisearch=e2e-sitesearch&keymatch=OPA1633%20ltspice#

You can open that zip file and use the .lib file within it to import into LTSpice - there seems to be plenty of info on the net to do that, but I haven't tried it myself.  At the very least, it is a human readable file which may be of some use.

Looks like you've solved it. That lib file inside the zip file is indeed the SPICE model (snippet screenshot below).