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  1. #1
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    how to simulate psrr in hspice?

    how to simulate psrr in hspice?

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  2. #2
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    Re: how to simulate psrr in hspice?

    As in any other simulator: add an AC component to you supply voltage; tie you inputs to signal ground by properly setting the DC voltage.

    Perform Monte Carlo AC simulation and look at you output node.

    If your system is an amplifier, then instantiate your main cell and make it to work in differential mode by using a copy of the AC source you use to determine the PSR. Then divide your differential gain by yout PSR

    PSRR= Ad/PSR

    If your system is, say, a bandgap, then PSRR=1/PSR



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  3. #3
    Full Member level 2
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    Re: how to simulate psrr in hspice?

    Quote Originally Posted by Humungus
    As in any other simulator: add an AC component to you supply voltage; tie you inputs to signal ground by properly setting the DC voltage.

    Perform Monte Carlo AC simulation and look at you output node.

    If your system is an amplifier, then instantiate your main cell and make it to work in differential mode by using a copy of the AC source you use to determine the PSR. Then divide your differential gain by yout PSR

    PSRR= Ad/PSR

    If your system is, say, a bandgap, then PSRR=1/PSR
    ok, thank you very much.



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