DIFFERENTIAL AMPLIFIER Russian patent published in 2005 - IPC

FIELD: radio and communications engineering.

SUBSTANCE: proposed differential amplifier that can be used in miscellaneous microelectronic devices for amplifying and converting analog signals has input parallel-balance stage 1 incorporating first and second inputs 2, 3, as well as first and second antiphase current outputs 4, 5 and first output transistor 6 whose emitter is connected to second current output 5 of input parallel-balance stage 1, base of first output transistor 6 being coupled at ac end with first input 2 of input parallel-balance stage 1.

EFFECT: reduced input conductance of amplifier in wide frequency range and, hence, enhanced high value of boundary frequency.

12 cl, 16 dwg