Quick Design Question!?

Discussion in 'Analog & Mixed-Signal Design' started by urawzrd, Mar 20, 2019.

  1. urawzrd

    Thread Starter New Member

    Mar 20, 2019
    2
    0
    Hello, I have a circuit design question I would like to ask:

    Assuming I am passing a certain analog signal to a very large loading through an analog transmission-gate/switch, is there any difference between using 1 very large sized T-gate (e.g. 100/0.1) versus say N number of smaller standard sized T-gates (e.g. 100 * 1/0.1) ?

    What is the difference if any and which one would be better for driving the signal?
     
  2. MrChips

    Moderator

    Oct 2, 2009
    18,350
    5,798
    Your question is not clear.
    You need to provide more specific information such as:

    What is the voltage level of the signal?
    What is the output impedance of the driver?
    What is the part number of the driver?
    What is your definition of a very large load?
    What is the part number of the transmission gate?
    What is the meaning of 100/0.1 T-gate?
    What is the value (resistance) of the load?
     
  3. urawzrd

    Thread Starter New Member

    Mar 20, 2019
    2
    0
    No, this is a simple question. Assume ideal case where both options can drive the loading. Is there a difference between using 1 single larger t-gate versus multiple smaller t-gates. Effective size of both are the same. Any difference?
     
  4. MrChips

    Moderator

    Oct 2, 2009
    18,350
    5,798
    Maybe it is a simple question to you. Sorry, I don't get the question.
     
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