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Pair 2 Analog to Digital Converter Chip

Discussion in 'General Electronics Discussion' started by blaqradio, Sep 11, 2016.

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  1. blaqradio

    blaqradio

    2
    0
    Aug 18, 2016
    hey guys is there a successful method to pair ADC to work simultaneously, reason is i want calculate power in 6 different points, reason i want them to work simultaneously cause want to read Voltage and Current at the same time so i could get a correct value for Power, but these are read at different times they will give me incorrect answers
     
  2. dorke

    dorke

    2,342
    665
    Jun 20, 2015
    You can do it with a single ADC !

    What you need are two " SaH(Sample and Hold) circuits" .
    You trigger them both at the same time and the points you sampled are frozen for you to measure with that single ADC.
     
    (*steve*) likes this.
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    10,025
    2,138
    Nov 17, 2011
    It depends on the type of ADC you use. Some ADCs come with built-in sync pins to synchronize operation of multiple ADCs. Others have more than one built-in ADC running synchronously. Others are desigend specifically for this kind of energy monitoring purpose.
    The cue words to look for are "simultaneous sampling ADC"
     
    (*steve*) likes this.
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