ADC

Discussion in 'The Projects Forum' started by Cerkit, Jan 13, 2009.

  1. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
    3
    Hi. Does anyone know an ADC I could use for a voltmeter module. Looking for a fairly cheap one. Don't know models. Need it to measure voltages up to 12 volts.

    Thanks
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
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    Will you like one with serial or parallel output?
    What is the smallest change in voltage you will like to measure?
     
  3. jj_alukkas

    Well-Known Member

    Jan 8, 2009
    751
    5
    Need an ADC chip?? Try ICL7107
     
  4. jj_alukkas

    Well-Known Member

    Jan 8, 2009
    751
    5
    It works with seven segment displays and has a good resolution
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Or get a panel meter and make up a resistive divider.
     
  6. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
    3
    Serial output. At least a change of 0.01 volts.
     
  7. mik3

    Senior Member

    Feb 4, 2008
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  8. Cerkit

    Thread Starter Active Member

    Jan 4, 2009
    275
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    Also I need it to have a very high sampling frequency because I will need it to sample a signal which could be potentially as high as 50khz. therefore will need it to sample at least at 25khz. Is something like that availabe??
     
  9. mik3

    Senior Member

    Feb 4, 2008
    4,846
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  10. jj_alukkas

    Well-Known Member

    Jan 8, 2009
    751
    5
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