Help Needed!!

Discussion in 'General Electronics Chat' started by tck1911, Nov 28, 2012.

  1. tck1911

    Thread Starter New Member

    Nov 12, 2012
    5
    0
    I need to connect an LM119 comparator to my circuit. The question is, should I connect pin 3 (ground pin) to ground? Or has it already been connected to ground?

    Thanks!
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    the ground pin is for split supplies, like +/- voltages, if its single supply you can connect the gnd pin to the 0v.
     
  3. crutschow

    Expert

    Mar 14, 2008
    13,026
    3,236
    Assuming you want the output signal going between the plus supply and 0V, then the ground pin is connected to ground (0V) whether you have a single supply or dual supplies.
     
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