Differential current mode amplifier device

Details Differential current mode amplifier device Differential current mode amplifier device

1994-10-28

1996-01-09

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

327359, 330257, 330258, H03F 345

Patent

active

054831946

ABSTRACT:
A differential current mode amplifier device generates a common mode bias current. A translinear multiplier receives at two inputs this common mode bias current and a differential mode current to be amplified and delivers at two outputs an amplified differential mode current. The translinear multiplier is biased in a manner depending on the bias current received by the translinear multiplier. The device includes a circuit for compensating the common mode current at the output of the translinear multiplier.

REFERENCES:
patent: 3867685 (1975-02-01), Ahmed
patent: 4757273 (1988-07-01), Bray
patent: 5021744 (1991-06-01), Van De Plassche
patent: 5132640 (1992-07-01), Tanaka et al.
patent: 5198781 (1993-03-01), Kusakabe
E. Seevinck, "Design and Application of Integrated Analog Interface Circuits", 1988 IEEE International Symposium on Circuits and System Proceedings, vol. 2, Jun. 7, 1988, pp. 1923-1925.
French Search Report FR 9313000 Jul. 21, 1994.

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