sheldon
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Neo_Flash,
It might be good to talk to your support AE.
Questions and comments:
1) Which version of Spectre are you using? In more recent versions of Spectre should have better accuracy
2) What errpreset are you using? If you are doing something that requires a lot of accuracy, for example, simulation of an analog/digital feedback loop, then tighter accuracy control may help. In the past, using the Spectre transient option relref=pointlocal helped me for one tough circuit
3) Try AMS Designer if you have access to it
Best Regards,
Sheldon
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