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OPA2197: Spice model running extremely slow in LT Spice

Part Number: OPA2197
Other Parts Discussed in Thread: TINA-TI, OPA197

I am having some trouble with the SPICE model in LT SPICE.

It runs extremely slow in LT. 

I did notice that the model for the 2197 is a lot more complex than the other installed LT/AD models.

I was wondering if the models could be simplified a bit for better performance.

What would you suggest?

Thanks,

Lauren

  • Lauren,

    Our OPA197macro-model is much more complex because is much more precise in terms of simulating the real circuit performance. Simplifying the macro-model may improve simulation speed at the cost of worse (not better) performance in terms of showing actually what you may expect using the physical part.

    OPAS197 macro-model is optimized to work best in Tina -TI (PSpice compatible simulation tool) - thus, please download the free Tina-TI software using following link: http://www.ti.com/tool/TINA-TI?keyMatch=TINA-TI&tisearch=Search-EN-everything

    and run the simulation using OPA197 model below:

    OPAx197 Tina-TI.TSC

  • Hi Lauren,

    OPA197 simulates fast and fine in LTSpice environment. Also you need to know that not all PSpice model feature can be simulated in LTSpice. 

    Please make sure that OPA197.lib is allocated in the .lib or .include directive statement's default search path. I am unable to find your email in TI's directory. Please send me an email, I will send you the file. 

    Best,

    Raymond