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  3. warning of Acde in Cadence Virtuoso

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warning of Acde in Cadence Virtuoso

Anum Khan
Anum Khan over 9 years ago

Hello Sir,

I am Anum Khan i am working on a project of designing a Low Power Low Noise Op-amp on Cadence Virtuoso version IC6.1.5.500.12

when i run the simulation it gives the warning of 'Acde' = 240.24e-03 is unusually small.

Can you please explain what does Acde means and how can i fix it ?

Thank You

Best Regards,

Anum Khan

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  • Anum Khan
    Anum Khan over 9 years ago

    Dear Sir,

    I am sorry for posting m question in a wrong forum. I will be careful for the next time.

    The spectre version i am using is 11.1.0.214 and the technology is LFoundary 0.15um

    Warning from spectre during initial setup.
    WARNING (CMI-2419): M9.pmos1v8lvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M9: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): M10.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M10: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): McascP.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): McascP: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): M8.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M7: `Acde' = 240.24e-03 is unusually small.

    Is there any solution for this?

    Regards,

    Anum Khan

     

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  • Anum Khan
    Anum Khan over 9 years ago

    Dear Sir,

    I am sorry for posting m question in a wrong forum. I will be careful for the next time.

    The spectre version i am using is 11.1.0.214 and the technology is LFoundary 0.15um

    Warning from spectre during initial setup.
    WARNING (CMI-2419): M9.pmos1v8lvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M9: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): M10.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M10: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): McascP.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): McascP: `Acde' = 240.24e-03 is unusually small.
    WARNING (CMI-2419): M8.pmos1v8hvt: `imax' = 1 A is larger than `imelt' = 10.9 mA. `imelt' is increased to `imax'.
    WARNING (CMI-2424): M7: `Acde' = 240.24e-03 is unusually small.

    Is there any solution for this?

    Regards,

    Anum Khan

     

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