4SignalTransistor

Discussion in 'General Electronics Chat' started by mpuvdd, Sep 30, 2007.

  1. mpuvdd

    Thread Starter Active Member

    Feb 11, 2007
    50
    0
    Hello all,
    Say I have 4 signals all in parallel. Rather than using transistors to control each individual line, what kind of IC or setup could I buy/make so that I can simply turn on, or off, all four signals at once. Like a transistor w/ four individual bases and emitters. Thanks a lot.
    mpuvdd
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Are the 4 signals you need to turn off and on, digital signals or analog signals?

    If analog, what is the voltage range associated with the signals?

    hgmjr
     
  3. mpuvdd

    Thread Starter Active Member

    Feb 11, 2007
    50
    0
    It's digital:cool:
     
  4. Papabravo

    Expert

    Feb 24, 2006
    10,140
    1,790
    An SPST Analog switch such as a 4066 should do the trick.
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    For 4 digital signals, the old 74LS125 or 126 is just the thing. Use the three state enables to turn the outputs on or off.
     
  6. mpuvdd

    Thread Starter Active Member

    Feb 11, 2007
    50
    0
    Perfect! That was exacly what I was looking for.
    Thanks so much:)
    mpuvdd