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Whats the difference between "resolution" and "effective no of bits" for Analog to Digital Converter

Discussion in 'Electronic Basics' started by sagar, Jul 22, 2004.

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  1. sagar

    sagar Guest


    I need to know the difference between the above two quantities.
    Especially,say my ADC resolution is 16bits and the ENOB is 14,what
    performance variation does it cause to the ADC?

    With regards,
  2. John Miller

    John Miller Guest

  3. andy

    andy Guest

    if you didn't get all the maths, i think what this means roughly is that
    the ADC produces a 16bit output, but the overall noise/distortion in the
    system means the output is only as good as a 'perfect' 14 bit ADC. i.e.
    there's 2 bits worth of extra noise compared to what you might hope. but
    this doesn't mean you should throw away the extra bits, as they still
    contain some real signal.
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