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  1. #1
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    Any diff of Gain BandWidth Product and Unity Gain BandWidth?

    There are 2 different parameters

    Gain BandWidth Product and Unity Gain Bnadwidth.

    My Question:

    What's the definition of the two parameters?

    What's the differences between the two parameters?

    In general,Which is bigger?

    In general,When we choose a element such as OP,which one we should take it into consideration?Which one would be ignored compare to the other one?

    I post the same topic in another BBS,someone said the two are same,But why must we define the two different parameters even they are same.

    ThankS

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  2. #2
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    Re: Any diff of Gain BandWidth Product and Unity Gain BandWi

    hi i think u can get idea from this link

    h**p://en.wikipedia.org/wiki/Gain-bandwidth_product

    Added after 4 minutes:

    see the attached file to get some more idea on Gain BW product and Unity gain bandwidth



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  3. #3
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    Re: Any diff of Gain BandWidth Product and Unity Gain BandWi

    see the attached file to get some more idea on Gain BW product and Unity gain bandwidth

    https://www.edaboard.com/viewtopic.php?p=902003#902003



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  4. #4
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    Re: Any diff of Gain BandWidth Product and Unity Gain BandWi

    Both Gain bandwidth product and unity gain bandwidth are same... At unity gain , the gain bandwidth product becomes unity gain bandwith...


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  5. #5
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    Re: Any diff of Gain BandWidth Product and Unity Gain BandWi

    Quote Originally Posted by sivakumar_tumma
    Both Gain bandwidth product and unity gain bandwidth are same... At unity gain , the gain bandwidth product becomes unity gain bandwith...
    Gain bandwidth product = unity gain bandwidth only for a single pole system.
    When a system has multiple poles and also potentially zeros , then this does not hold good.
    For a higher order system (multiple poles/zeros), unity gain frequency would be usually
    less than the gain bandwidth product (because each higher order pole creates -20 db/decade
    and unity gain frequency would occur faster)



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