A novel reusable sub volt differential amplifier module for use as a pre amplifier or output stage

摘要

A differential amplifier having quad inputs with the pair of differential input voltages common between a set of N channel FETs and P channel FETs acting in a differential push pull strategy is provided. The amplifier achieves a considerable amount of voltage gain and swing while operating in sub volt region and can be modularly used in a multi stage amplifier design as a pre amplifier stage with differential inputs or as an output stage. Additionally this reusable stage does not require any current source or sink for its operation negating the need for any external add-on circuitry.