DIFFERENTIAL INPUT STAGE OF HIGH-SPEED OPERATIONAL AMPLIFIER FOR CMOS TECHNOLOGICAL PROCESSES Russian patent published in 2015 - IPC H03F3/34 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to input stage circuits on CMOS transistors. The source of the first input transistor is connected to the drain of the fourth input field-effect transistor through a first additional resistor; the source of the second input transistor is connected to the drain of the third input field-effect transistor through a second additional resistor and through an additional potential basis circuit to the gate of the second output transistor, which is connected to the second power supply bus through an additional current-stabilising two-terminal element.

EFFECT: wider active operating range of the differential input stage.

13 dwg