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You can create a AB-Class Output Stage after OTA ( Differential Pair)Yes it is. Now say that I wanted to use a classe AB at the output. Would that be possible?
Or maybe the question would be where is the class AB used more often? Which topologies?
You can create a AB-Class Output Stage after OTA ( Differential Pair)
Find here a lecture on CMOS (class AB) output stages appropriate for use as OTA output stage (both together I'd call it an OpAmp).
View attachment 140051 . See pages 210-21 ff. for single ended or differential input from OTA.
That's the point, The overall structure is no longer an OTA, there's no class AB stage in an OTA.Find here a lecture on CMOS (class AB) output stages appropriate for use as OTA output stage (both together I'd call it an OpAmp).
OTA is defined as differential amplifier with high impedance input and output nodes only, while all internal nodes are low impedance ones.OTA is pure class A.