CASCODE DIFFERENTIAL AMPLIFIER Russian patent published in 2010 - IPC H03F3/45 

FIELD: radio engineering.

SUBSTANCE: cascode differential amplifier comprises input differential cascade (DC) (1), the first (2) output transistor (T), emitter of which is connected to the first (3) current output of input DC (1), collector is connected to input of current mirror (4), and base is connected to auxiliary source of voltage (5), the second (6) output T, emitter of which is connected to the second (7) current output of input DC (1), and collector is connected to output of current mirror (4) and input (8) of buffer amplifier (9), besides conductivity of input T (10) of buffer amplifier (9) matches conductivity T (2) and T (6). Base T (6) is connected to emitter T (2).

EFFECT: reduced shift voltage.

2 cl, 12 dwg