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  1. #1
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    Capacitor Selection in Sigma Delta Modulators

    Hello,

    I am designing 3rd Order, Single Bit, CIFF Discrete Time Sigma Delta Modulator.

    How to select the capacitors sizes for this design ?

    See attachment.

    CT - total of ff - feedback capacitors.

    I know how to select CS1 based on my noise requirements. But how do I select the other capacitors sizes like Cff(x) and Cs(x) etc.

    Thank you.

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  2. #2
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    Re: Capacitor Selection in Sigma Delta Modulators

    Quote Originally Posted by Puppet123 View Post
    But how do I select the other capacitors sizes like Cff(x) and Cs(x) etc.
    Based on Integral capacitor value.

    It is determined by current consumption.



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