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  1. #1
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    Fast static CMOS comparator circuit

    Hi all,

    Could you recommend some key/good papers about static CMOS comparators (not dynamic ones)?

    Thank you very much.

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  2. #2
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    Re: Fast static CMOS comparator circuit

    Static CMOS comparators are not really good when it
    comes to Vio (t=0, and drift). That's why so many are
    clocked (that, and low quiescent power).

    If you were clever and had the die area and a handy
    clock resource, you could make a ping-pong comparator
    that zeroed one side while the other was real-time
    ("static").

    High gain is the enemy of high bandwidth. Low power
    is the enemy of high bandwidth. High common mode
    range, yadda yadda. What are you willing to sacrifice,
    what technology can you stand to use given the other
    requirements? It's not like you're going to get a 12nm
    FinFET comparator to handle +/-10V input common
    mode range, and it's not like you want to use a 40V
    bipolar process to be a high speed serial receiver
    front end when its swing is a hundred mV and its
    common mode is pinned to 0.5V +/- 50mV either.



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  3. #3
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    Re: Fast static CMOS comparator circuit

    aicdesign.org has some free courses online by P.E.Allen. Browse for it.
    "Try SCE to AUX." /John Aaron/



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