FIELD: radio engineering, communication.
SUBSTANCE: operational amplifier includes first and second bipolar input transistors whose bases are connected to respective first and second inputs of the operational amplifier, a current mirror in accord with the first power supply rail, whose output is connected to the current output of the operational amplifier and the collector of the first output transistor. The collector of the second auxiliary transistor is connected to the base of the first output transistor, the emitters of the first and second auxiliary transistors are connected to a second power source bus, the first and the second additional field-effect transistors with control pn-junction, and the collectors of the first and second input bipolar transistors connected to the first power supply bus.
EFFECT: increase of precision op amp in terms of destabilizing factors.
8 cl, 17 dwg
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