COMPLEMENTARY CASCODE DIFFERENTIAL AMPLIFIER WITH PARAPHASE OUTPUT Russian patent published in 2012 - IPC H03F3/45 

FIELD: radio engineering.

SUBSTANCE: method is realised by introduction of an additional transistor (17) into a complementary cascode differential amplifier with a paraphase output, and the transistor's collector is connected to the first (3) bus of a power supply source, its emitter is connected to combined basic inputs of the first (4) and second (5) current mirrors via a dipole of a potentials displacement circuit (18), at the same time the collector of the first (8) output transistor is connected to the base of the additional transistor (17) via the serially connected first (19) additional buffer amplifier and the first additional resistor (20), the collector of the second (10) output transistor is connected to the base of the additional transistor (17) via the serially connected second (21) additional buffer amplifier and the second (22) additional resistor, and the first (15) and second (16) outputs of the device are outputs of the appropriate first (19) and second (21) additional buffer amplifiers.

EFFECT: increased stability of output static cophased voltage of the differential amplifier.

7 dwg