COMPLEMENTARY INPUT STAGE OF HIGH-SPEED OPERATIONAL AMPLIFIER Russian patent published in 2014 - IPC H03F3/34 

FIELD: electricity.

SUBSTANCE: complementary input state of a high-speed operational amplifier comprises: first (1) and second (2) input transistors, first (3) and second (4) output transistors with combined bases, first (5) and second (6) device inputs, first (7) and second (8) auxiliary transistors, first (9) current-stabilising two-terminal element, first (10), (11) current outputs of the device, second (12), (13) current outputs of the device, first (14) power supply bus, second (15) power supply bus, second (16) current-stabilising two-terminal element, first (17) additional resistor, second (18) additional resistor, third (19) and fourth (20) additional resistors.

EFFECT: wider range of active operation of the input stage of an operational amplifier for a differential signal, obtaining limiting voltages of its transfer characteristic, which increases operational speed of the operational amplifier by more than an order.

20 dwg