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  1. #1
    Junior Member level 1
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    Problem with the output of the switch

    Hello everyone
    I am trying to design a charge scaling DAC.
    I am having problem with the output switch(transmission gate). When simulated individually it works fine. But when integrated into the DAC the output at the end of the switch remains floating at 1.8V(net9,net16,net11,net12). I couldn't understand the reason. Could someone help me out.
    Thank you.
    Please find the attachments.

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  2. #2
    Super Moderator
    Points: 54,196, Level: 56

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    Re: Problem with the output of the switch

    I suspect the output ought to have some amount of resistive load on it, to allow charging and discharging in the capacitors.



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