In class ab amplifier integrated in cmos technology

摘要

The invention relates to an amplifier integrated in cmos technology. / p & & p & this amplifier, working in class ab, comprises an output stage comprising a bipolar npn transistor t and an n channel mos transistor t is mounted in series in the manner of a stage "push - pull ". / p & & p & the npn transistor is controlled directly on its base by the signal to be amplified. The mos transistor t receives on its control gate of the output signal of an amplifier differential whose entrees are connected on the one hand, at the output s of the amplifier and on the other hand, the sender e of a bipolar transistor t, receiving on its base, the signal to be amplified. / p & & p & application: amplifiers integrated able to remove in particular on a load normalized of 600o.