Since Version 24 came it appears that I am supposed to keep my user defined models in a different place than the factory models, However I have not yet made the switch from the file structure I had previously.? I keep my models in subdirectories in the factory lib and sym folders.
I edited the Pin locations in the TI supplied OPA891_Model_V1p1.lib and renamed the edited version to OPA891_Model_V1p1SAH.lib.? I presume that I must copy that entire file to a directory where the symbol can call it.
I have made 2 symbols: OPA891 and OPA2891 which should both call the same Model.
I edited the Attributes as follows:
Prefix X
SpiceModel? ?TSS/OPA891.sub? (my customized models are in a TSS subdirectory)
Value? ? ?OPA891?
Remaining attributes are blank
It seems that the SpiceModel attribute should be?OPA891_Model_V1p1SAH.lib? rather than .sub. along with directions for the symbol to find it.
There is a whole lot of other stuff in that file other than the opamp model itself.? Should the symbol call the whole .lib file and it will figure out which part to use?
Sorry for the newbee questions, but figuring out the directory structure in version 24 isn't easy for me.
I'm still smarting from when an attempted install of version 24 erased my entire Win 7 LTSpice installation without warning.
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Many thanks,
Steve
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On 2024-12-20 09:45, Andy I via groups.io wrote:
Just in case it was not obvious already -
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Use LTspice's "opamp2" symbol with this model, after making the change to the model file.
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Change the name next to the symbol from "opamp2" to "OPA891".
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Also add this line:
? ? .lib OPA891_Movel_V1p1.lib
to your schematic.? Keep that model file in the same directory with your schematic - or move it to one of your User-defined Lib. Search Path folders.
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Andy
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