I am new to adding models to LTSpice. I have successfully added OPA350 from TI, but with MAX941 from Maxim Integrated I get some errors due to the LTSpice "opamp2" model does not have the same amount of pins as the MAX941.

I am not interested in simulation the MAX941 N/C, LATCH and SHUTDOWN pin, which then makes it compatible with the "opamp2" model. My question then is: Is it easy to remove the pins (N/C, LATCH, SHUTDOWN) by editing the .sub file? If so, how?

Here is a link to the MAX941 macro model file:

MAX941 macro model file

  • 1
    \$\begingroup\$ It sounds like you're trying to fit a square peg into a round hole. The MAX491 is a comparator, not an opamp. Nevertheless, you should be able to create a "wrapper" model that ties off the unused pins approprirately, rather than modifying the manufacturer's model directly. \$\endgroup\$
    – Dave Tweed
    Commented Mar 6, 2014 at 20:41

1 Answer 1


What I basically did was use a DIP-8 symbol instead of the opamp2 and it worked.


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