ADC input circuit

Discussion in 'General Electronics Chat' started by Jim_2.0, Feb 22, 2007.

  1. Jim_2.0

    Thread Starter Well-Known Member

    May 14, 2006
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    0
    Hi guys

    I am using a MAX1270 8 channel multirange ADC in an industrial application. I gather it is wise to put some sort of circuitry between the ADC and the real world... Some kind of voltage follower or buffer? Anyone got any hints/tips/circuits on doing this, I really have no idea...

    thanks
     
  2. hgmjr

    Moderator

    Jan 28, 2005
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    214
    What is needed in the way of more information is the nature of the analog signal that is being digitized by your ADC.

    What is the frequency range, voltage range, and wave shape of your signal?

    hgmjr
     
  3. Jim_2.0

    Thread Starter Well-Known Member

    May 14, 2006
    51
    0
    The input voltage will be either 0-5V, 0-10V, +/-5V or +/-10V DC depending upon what is being used to drive our circuit. The ADC is configurable to handle these multiple inputs.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
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    Now that we know the voltage ranges that are involved, what about the frequency range?

    hgmjr
     
  5. Jim_2.0

    Thread Starter Well-Known Member

    May 14, 2006
    51
    0
    ill have to do some tests when we get our scope on monday and get back to you on that one. our main signal is just a 0-5V DC input, we are just wanting to include the other input ranges in our design for future flexibility
     
  6. hgmjr

    Moderator

    Jan 28, 2005
    9,030
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    Designing with the future in mind. That seems like a prudent measure to me.

    hgmjr
     
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