FIELD: radio engineering, communication.
SUBSTANCE: bipolar-field operating amplifier contains an input differential stage (1), a power supply bus, a field effect transistor, a static mode stabilizing circuit (17) connected to the power supply bus, an output bipolar transistor. 
.
EFFECT: extending the change range of the negative output voltage of the operating amplifier to the level close to the voltage on the second power supply bus and increasing the attenuation factor of the input common-mode signals of the operating amplifier.
6 dwg
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