MULTIPLE-INPUT AND MULTIPLE-OUTPUT AMPLIFIER HAVING PSEUDO-DIFFERENTIAL INPUTS

摘要

Multiple-input and multiple-output amplifier having pseudo-differential inputs The invention relates to an amplifier capable of delivering a plurality of output signals, these output signals being controlled by a plurality of input signals.A multiple-input and multiple-output amplifier of the invention comprises a common input terminal (10), 4 signal input terminals (11) (12) (13) (14), 4 signal output terminals (21) (22) (23) (24), a common terminal amplifier (9), 4 active sub-circuits (30) and a feedback network (40). Each active sub-circuit (30) has a sub-circuit input terminal connected to one of the signal input terminals (11) (12) (13) (14), a sub-circuit output terminal connected to one of the signal output terminals (21) (22) (23) (24) and a sub-circuit common terminal. The feedback network (40) has 4 "C" terminals and one "R" terminal. Each of said "C" terminals of the feedback network (40) is coupled to the sub-circuit common terminal of one of said active sub-circuits (30). The output terminal of the common terminal amplifier (9) is coupled to said "R" terminal of the feedback network (40).