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Recent content by qtarch

  1. Q

    fringe capacitance calculation

    fringing capacitance Do not use adjacent metal layers and keep distance between wires especially differential ones.
  2. Q

    what is the supply connection fo this output buffer?

    Yes. My question is why there's a series resistor connected to the source of M2? Just used to describe the substrate resistance?
  3. Q

    substrate connection in mixed signal circuit

    Yes, you can do it. Always the substrate is tied to its own circuit block. And sometimes substrate can be tied to another clean ground line if there are enough pins. But take care of other issue such as connection metal width and so on.

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