4SignalTransistor

Thread Starter

mpuvdd

Joined Feb 11, 2007
50
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
 

hgmjr

Joined Jan 28, 2005
9,029
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
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
 

beenthere

Joined Apr 20, 2004
15,819
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.
 
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