A bit taxing to the amplifier as you need to run it pretty hot -- you place a trimmer in one of the gate circuits, say 500 ohms, set to mid-value. Using a square wave source, adjust the trimmer until the amplifier "slews" identically for the N and P channels. The square wave source would be about half the input voltage you would normally use for sine-wave testing.
Explained in page 16 of this application note from Texas Instruments:
http://www.ti.com/lit/an/snaa045a/snaa045a.pdf
You probably don't need the protection diodes for the Lateral Mosfets --
Jack
Explained in page 16 of this application note from Texas Instruments:
http://www.ti.com/lit/an/snaa045a/snaa045a.pdf
You probably don't need the protection diodes for the Lateral Mosfets --
Jack
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