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[FAQ] Where do I connect the power pad for an operational amplifier?

Paul Goedeke
Mastermind 30600 points

Some devices have a power pad on their package, where should you connect it?

  • 0
    TI__Mastermind 30600 points
    If your device has a thermal pad, it should be electrically connected to the lowest potential in the circuit, usually the negative supply voltage. If this pad is unconnected, you may capacitively couple noise into the circuit. In layout, make sure that this pad is connected to a plane and not simply a via or wire - there will not be enough thermal sinking capability otherwise.

    For more detailed information on layout considerations, please take a look at the following documents:

    www.ti.com/.../slma002g.pdf

    www.ti.com/.../sloa120.pdf