Noise reduction scheme for operational amplifiers

Details Noise reduction scheme for operational amplifiers Noise reduction scheme for operational amplifiers

H - Electricity

03

F

H03F 3/45 (2006.01) H03F 1/26 (2006.01)

Patent

CA 2360213

Methods and apparatus are described for generating or amplifying a differential signal. The output of a first op amp (op amp 1') corresponds to one end of the differential signal. The output of a second op amp (op amp 2') corresponds to the other end of the differential signal. The inverting input of the first op amp (op amp 1') is coupled to the noninverting input of the second op amp (op amp 2').

L'invention concerne des procédés et des appareils permettant de fournir ou d'amplifier un signal différentiel. La sortie d'un premier amplificateur opérationnel (1') correspond à une extrémité du signal différentiel. La sortie d'un second amplificateur opérationnel (2') correspond à l'autre extrémité du signal différentiel. L'entrée inverseuse du premier amplificateur (1') est couplée à l'entrée non inverseuse du second amplificateur (2').

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