CMOS technology amplifier with differential input and asymmetric output.

Abstract

Abstract CMOS technology operational amplifier with symmetric input and asymmetric output, characterised in that it comprises a symmetric amplifying chain 1, 9 having two inputs and two outputs which are differential, one of the outputs 10 forming the common-mode output of the setup, a summing circuit 12 connected to the outputs 10, 13 of the amplifying chain 1, 9, a current source 19 mounted so as to supply at least part of the said amplifying chain 1, 9 and a feedback loop 14 to 18 connected between the summing circuit 12 and the said current source 19 in order to regulate the latter in phase opposition with respect to the sum of the fluctuations appearing on the outputs of the amplifying chain 1, 9.

Inventors

• 👤 Jean Ciroux
• 👤 Pierre Schubert
• 👤 Yves Leduc

Bibliographic Details