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    [Moved:] Question about analog Mux MPC506A

    Hellos guys,

    I am wondering what's up with the output of this part when the enable = L. Is it in High Impedance? The datasheet does not say anything respecting to that...

    Greetings

    EP

    •   Alt7th September 2017, 08:49

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  2. #2
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    Re: Question about analog Mux MPC506A

    Hi,

    The datasheet is very clear in this.
    The Truth tabele says: when EN = LOW, then NONE channel is ON. It´s the same as EVERY channel is OFF.

    The electrical specifications show
    * ON state as R_ON - ON resistance.
    * OFF state as OFF input/output leakage current.

    Klaus



    •   Alt7th September 2017, 10:20

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  3. #3
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    Re: [Moved:] Question about analog Mux MPC506A

    Therefore, should it be possible to connect two outputs of two different mux to the same wire? Or would I have some problem with the accuracy becauseto the leakage current?

    Greetings!



    •   Alt14th September 2017, 07:15

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  4. #4
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    Re: [Moved:] Question about analog Mux MPC506A

    Hi,

    You may connect different MUX outputs.
    For sure you have to take care obout some situations:
    * what happens when two or more MUX are enabled at the same time, maybe by accident.
    * what happens when none MUX is enabled and the signal is foating.
    * combined capacitance
    * combined leakage current

    Wheter leakage current is a problem or not depends on your reqirements. Impossible to give a general answer.

    Klaus



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