Current mode transconductor tuning device

Details Current mode transconductor tuning device Current mode transconductor tuning device

2006-02-01

2008-08-12

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

C327S560000

Reexamination Certificate

active

07411459

ABSTRACT:
A transconductor tuning device tuning a transconductance using a current. The transconductor tuning device includes a tuning section that applies a tuning current and a reference voltage to a transconductor converting an input voltage signal into a current signal and thereby tunes a level of transconductance. The tuning section includes a tuning current generator that converts a bias signal supplied from a bias current source into a certain level of tuning current and outputs the tuning current to the transconductor. The transconductor includes a control voltage generator that generates a certain level of control voltage using the tuning current. Accordingly, the transconductance of the plurality of transconductors are tuned at the same level.

REFERENCES:
patent: 5394112 (1995-02-01), Alini et al.
patent: 6933773 (2005-08-01), Mattsson et al.
patent: 2 393 868 (2004-04-01), None

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