using an op-amp properly in multisim

Discussion in 'The Projects Forum' started by inkosi, Apr 14, 2015.

  1. inkosi

    Thread Starter Member

    Dec 10, 2013
    35
    0
    Hello, I wasn't able to find any instructions online or in the manual so help here would be appreciated.

    My circuit is [​IMG].

    Now before I make the circuit on breadboard I want to simulate this in MultiSIM. I'm nearly done but I can't get the proper pins to show up on the op-amp in MultiSIM. The only ones that show up are these:

    [​IMG]

    How do I show the other pins, like 5, 6 and 7?
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,045
    3,244
    The pin numbers depend upon the package.
    And you are simulating an op amp, not the comparator shown in your top schematic.

    P.S. It's hard to read your schematic when you place parts so close together such as the resistor and the pot.
     
  3. inkosi

    Thread Starter Member

    Dec 10, 2013
    35
    0
    Nevermind that, it was an unclear pic and I'm not sure what I did to that segment.

    [​IMG]

    Anyway I used the proper component (LM311) and it seems to show all of the pins, so thanks. :)
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,045
    3,244
    If you use the LM311 you'll need a pullup resistor from it's output to V+.
     
    inkosi likes this.
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