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How to add ".options" directive to a TINA simulation?

Matt Mishrikey
Intellectual 445 points

The instructions for a certain device model (CREE C2M0025120D) state that I should use the following .options directive when running the simulation:

.OPTIONS METHOD=GEAR ABSTOL=1e-6 CHGTOL=1e-12 GMIN=1e-9 ITL1=1000 ITL2=1000 ITL4=1000 ITL6=1000 RELTOL= 0.001 VNTOL=1e-3 NOOPITER

Is there a way to add this to the simulation?  The only one I found in the Analysis Options was the integration method (gear).  In LTSpice you can just drop in a .options directive.

  • 0
    TI__Mastermind 40295 points

    Matt,

    You can change the analysis parameters by first selecting the Analysis/Set Analysis Parameters in the menu and changing the sim parameters in the resulting pop-up window.

    You can see the entire sim parameter list by clicking the hand icon in the pop-up window and selecting View All.

    You can see the relationship between the parameters in the window and the SPICE labels (ABSTOL, RELTOL, etc) by clicking on the Help button in the pop-up window.

    Please let me know if you have any more questions.
    Regards,
    John

  • 0 in reply to John Miller - Sensing
    Intellectual 445 points

    Thanks for the explanation!  

    I was able to find a match for all the parameters except for ITL6 and NOOPITER. I'm not sure if they're standard spice options, maybe just in LTspice.

    itl6 = x  Source stepping iteration limit. (Default = 0.) SPICE option accepted but not implemented. Source stepping is not available.

    NoOpIter  = disable Direct Newton Iteration