BIPOLAR-FIELD MULTIDIFFERENTIAL OPERATIONAL AMPLIFIER Russian patent published in 2017 - IPC H03F3/45 

FIELD: electricity.

SUBSTANCE: proposed bipolar-field multidifferential operational amplifier, which comprises a first (1) input bipolar transistor, the first (2) input device, the first (3) input FET with controlling p-n junction, the second (4) input device, the second ( 5) input bipolar transistor, and the third (6) input device, the second (7) input FET with controlling p-n junction, a fourth (8) input device, a current mirror (9), the first (10) power supply bus buffer amplifier (11), second (12) power supply bus, the first (13) and second (14) additional resistors, the first (15) and second (16) and third (17) additional bipolar transistors, the first (18) third current stabilizing two-pole, fourth (19), fifth (20) and sixth (21) additional bipolar transistors, the second (22) additional current stabilizing two-pole.

EFFECT: increase in voltage gain open multidifferential operational amplifier while maintaining the high stability of the zero level.

2 cl, 9 dwg