DIFFERENTIAL OPERATIONAL AMPLIFIER WITH PARAPHASE OUTPUT Russian patent published in 2012 - IPC H03F3/45 

FIELD: radio engineering.

SUBSTANCE: differential operational amplifier with a paraphrase output comprises from the first to the fourth input transistors, from the first to the fourth stabilising dipoles, the first and second output transistors, the first and second dipoles of a collector load, the first additional transistor, the first and second feedback resistors.

EFFECT: development of conditions, under which the output static cophased voltage of the differential amplifier will have high stability and zero voltage in case parameters of collector load elements and current-stabilising element of input transistors' emitter circuit vary in wide range.

2 cl, 5 dwg