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  1. #1
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    about OPA with swith-capacitor common feedback

    for the OPA with swith-capacitor common feedback, it is controlled by two clock signal, how to simulate the bandwidth and gain of this type of OPA

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    Re: about OPA with swith-capacitor common feedback

    Quote Originally Posted by williamy
    for the OPA with swith-capacitor common feedback, it is controlled by two clock signal, how to simulate the bandwidth and gain of this type of OPA
    to replace the switch cap by large resistor can smooth the simulation



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    about OPA with swith-capacitor common feedback

    swicth Cap on some clock , you can use equal
    "resistor"
    and replace form sim



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  4. #4
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    about OPA with swith-capacitor common feedback

    what mean equal "resistor" ?
    thanks!



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    Re: about OPA with swith-capacitor common feedback

    Quote Originally Posted by williamy
    what mean equal "resistor" ?
    thanks!
    ≈ 1/(f*clk)



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    about OPA with swith-capacitor common feedback

    1/(f*C)? thanks



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  7. #7
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    Re: about OPA with swith-capacitor common feedback

    use ideal cm



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