COMPLEMENTARY DIFFERENTIAL AMPLIFIER Russian patent published in 2008 - IPC H03F3/34 H03F3/45 

FIELD: radio engineering and communications, possible use as device for amplifying analog signals, in structure of analog microchips of various functional purposes (for example, operational amplifiers).

SUBSTANCE: complementary differential amplifier contains input differential cascade (1) on p-n-p input transistors (2) and (3), second differential cascade (10) on n-p-n input transistors (11) and (12). Introduced to the circuit are first and second additional p-n-p transistors (17) and (18), collectors of which are corresponding main outputs (19) and (20) of complementary differential amplifier, matched with the bus (18) of negative power supply, and also first and second additional n-p-n transistors (21) and (22), collectors of which are main outputs (23) and (24) of complementary differential amplifier, matched with the bus (15) of positive power supply, where bases of transistors (17) and (18) are connected to second current-stabilizing dipole (16) of differential cascade (10), bases of transistors (21) and (23) are connected to first current-stabilizing dipole (9) of differential cascade (1), emitters of transistors (21) and (22) are connected to collectors of transistors (11) and (12), emitters of transistors (17) and (18) are connected to collectors of transistors (2) and (3).

EFFECT: increased efficiency.

2 cl, 19 dwg