choosing the right comparator

Discussion in 'General Electronics Chat' started by nully000, Jun 14, 2013.

  1. nully000

    Thread Starter New Member

    Jun 14, 2013
    3
    0
    hy there, i'm new to electronic and need some help. i want to use a comparator to measure some voltage in micro or nano dimensions, and dont have an oscilloscope. i cannot get the information i want from the data sheets. does any one know a micro controller that can compare micro volts or even better help me understanding these sheets where to look etc
    thanks in advance
     
  2. Andreas

    Active Member

    Jan 26, 2009
    68
    4
    Generally we talk of mV (milli Volt), uV (micro Volt) and pV (pico Volt) but not nano Volt.

    So you want to compare two voltages down in the microVolt region using a comparator IC (chip) or with a microcontroller?

    Some more descriptive information is required. Such as data sheets, device types, circut schematic, application etc.

    P.S. If you wanna get serious about electronics then an oscilloscope is pretty much a necessity.
     
  3. nully000

    Thread Starter New Member

    Jun 14, 2013
    3
    0
    all i need is the name of a cheap chip that can compare two voltage in uV region or even better, can most of these chips do that, and cannot afford an oscilloscope for the moment, will have to do with out
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,000
    3,229
    Generally comparing voltages in the μV region is dicey. Can you amplify the signals before comparison?
     
  5. nully000

    Thread Starter New Member

    Jun 14, 2013
    3
    0
    i was already thinking about it, but would prefer to avoid this solution
     
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