INPUT CASCADE OF A HIGH-SPEED DIFFERENTIAL OPERATIONAL AMPLIFIER WITH NONLINEAR CORRECTION OF THE TRANSIENT PROCESS Russian patent published in 2023 - IPC H03F3/45 

FIELD: electrical engineering and microelectronics.

SUBSTANCE: cascade input stage of a high-speed operational amplifier with a nonlinear transient correction is proposed, which contains the first (1) and second (2) inputs of the device, the first (3) and second (4) current outputs of the device, matched with the first (5) source bus power supply, first (6) input transistor, first (7) output transistor, second (8) input transistor, second (9) output transistor, first (10) reference current source, second (11) power supply rail, third (12) input transistor, first (13) auxiliary resistor, third (14) device current output, fourth (15) input transistor, second (16) auxiliary resistor, fourth (17) current output, first (18) auxiliary transistor, potential matching circuit (19), the second (20) reference current source and an additional corrective capacitor (21).

EFFECT: increasing the limit values of the maximum slew rate of the output voltage in the operational amplifier (op-amp).

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