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Now I'm trying to simulate with LMH6714 PSPICE model in TINA-TI but I'm facing error. And so I replaced LMH6714 model to normal OPAMP model then transient simulation was done with no error. Can you check attached both file and let me know what's problem.
TINA-TI sim_normal OPAMP.TSC
Sonoki / Japan Disty
I am assuming that you are trying to run a transient simulation. If that is not the case, please let us know. You can usually solve convergence issues by modifying the simulation parameters in TINA-TI. In this case, there is only one parameter I needed to change to get the simulation to converge:
Convergence errors are part of using a simulator. There is no exact way to tell you how to solve them as they change from circuit to circuit and model to model. I cannot tell you why the other circuit converges with a different set of parameters, other than the fact that the simulator satisfied the requirements for convergence in one case and did not in another.
Online Design Tools
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In reply to Britt Brooks - Online Design Tools:
In reply to S.Satoshi:
Use the Analysis-->Set Analysis Parameters... option.
If the short version of the list appears, click on the Hand icon and select View All
You should then see all of the simulation parameters available for you to use.
Please kindly let me ask about TR max. iteration number again.
The TR max iterations value tells the simulator how many times to try to find a solution at a given time point before stopping. In order to find a solution, the simulator must meet certain criteria required for convergence. In this case, the simulator need more time (or effort) to find the solution that met the specified requirements. By increasing the value, you will be essentially slowing down the overall simulation, since each time point may now take a little longer to solve in order to meet the convergence criteria.
Simulation is a trade off between accuracy and time. The less accurate the solution, the quicker the simulation and vice-versa. Please remember that any simulator is basically a linear equations solver trying to solve many very non-linear dependencies. Any time iterations are increased to get a solution, the time must also increase.
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