Circuit arrangement for enhancing the transconductance of a diff

Details Circuit arrangement for enhancing the transconductance of a diff Circuit arrangement for enhancing the transconductance of a diff

1991-09-30

1992-08-04

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

H03F 345

Patent

active

051362589

ABSTRACT:
A circuit arrangement for enhancing the transconductance of a differential amplifier stage comprising a pair of MOS transistors, having respective source electrodes connected together through a circuit node, comprises a pair of active components respectively connected in each of the connections between the aforesaid electrodes and the aforesaid node and serving a characteristic function corresponding to that of a negative value resistor. This arrangement enables the transconductance of the differential stage to be increased while keeping the dissipated electric power low and the area occupied in an integrated circuit small.

REFERENCES:
patent: 3678404 (1972-07-01), Blom
patent: 4697112 (1987-09-01), Ohtani
patent: 4720685 (1988-01-01), Garuts
Journal of the Audio Engineering Society, vol. 29, No. 7/8, N.Y., U.S.A. pp. 503-510; M. J. Hawksford "Distortion Correction Circuits for Audio Amplifiers".

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