Re: Audio buffer output

>I've even seen an IC marked with Vss that was really a ground pin.
> Michael

That is quite normal. Look at some more spec sheets.

Having Vdd (Drain supply) and ground called out is more common,
but it's possible to have:
Vdd and Vss (both being non-zero potentials)
Vdd and ground
or
a negative-value Vss and ground.

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