TWO-STROKE CASCODE DIFFERENTIAL AMPLIFIER Russian patent published in 2008 - IPC H03F3/26 H03F3/34 

FIELD: physics, radio.

SUBSTANCE: cascode differential amplifier (CDA) includes first (1) and second (2) input transistors (T) with their bases connected to first (3) and second (4) static mode circuits, first (5) and second (6) current stabilising impedors connected to respective emitters T (1) and T (2) and to first (7) and second (8) CDA inputs, first (9) and second (10) output current amplifiers (CA) with their main outputs (11) and (12) connected to each other and to CDA output (13), so that CA (10) input (14) is connected to T (1) collector, while CA (9) input (15) is connected to T (2) collector. First CA (9) and second CA (10) feature additional outputs (16) and (17), additional CDA (9) output (16) is connected to T (2) emitter via first nonlinear current splitter (NCS) (18), and additional CA (10) output (17) is connected to T (1) emitter via second NCS (19).

EFFECT: enhanced stability of static mode in double-stroke cascode differential amplifier.

5 cl, 10 dwg