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Homework Help: Using LTSPICE simulate CMOS function

  1. Nov 11, 2009 #1

    kiz

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    1. The problem statement, all variables and given/known data

    write the output F for different combinations of input using

    F= abc
    F= ((ab)’+c)’


    2. Relevant equations



    3. The attempt at a solution

    I've tried and have drawn the schematic but I cant get correct output righ, im using LTspice which is not very intuitive... I have attached my schematics. thx
     

    Attached Files:

  2. jcsd
  3. Nov 11, 2009 #2

    Redbelly98

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    Staff Emeritus
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    I haven't looked at your circuit, but why go to that trouble? Why not simply construct a truth table?
     
  4. Nov 11, 2009 #3

    kiz

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    The professor wants it synthesized in SPICE. My waveforms look incorrect.
     
  5. Nov 11, 2009 #4

    LCKurtz

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    Isn't F = ((ab)' + c')'?
     
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