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DEFCON in LT-SPICE?

Discussion in 'CAD' started by mukund, Nov 13, 2008.

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  1. mukund

    mukund Guest

    What does DEFCON mean when running a simulation in LT-SPICE? During
    many simulations, the SPICE engine supposedly goes into DEFCON, and
    the quality of the results apparently deteriorates.

    Is something wrong with my circuit, or is it just that I am pushing LT-
    SPICE?

    Thanks,
    Mukund
     

  2. Hello,

    maybe yes.

    At least LTspice has had a hard time to simulate your circuit.
    You should think about a better circcuit structure or more reasonable values
    in your design. Using Nano-Ohms and Tera-ohms in one circuit
    for example can lead to trouble. Also some of the vendor's opamp-models
    are a nightmare for every SPICE-simulator.

    Best regards,
    Helmut
     
  3. Joerg

    Joerg Guest

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