Linear transconductance cell with wide tuning range

Details Linear transconductance cell with wide tuning range Linear transconductance cell with wide tuning range

2006-12-05

2006-12-05

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S253000, C330S305000

Reexamination Certificate

active

07145395

ABSTRACT:
A transconductance cell is disclosed. The transconductance cell may be single-ended or differential. The transconductance cell may include a tunable degeneration circuit. The tunable degeneration circuit may have a plurality of field effect transistors connected in series with each of the field effect transistors having a gate configured to receive a tuning voltage.

REFERENCES:
patent: 3852679 (1974-12-01), Schade, Jr.
patent: 5612648 (1997-03-01), McClellan et al.
patent: 5978241 (1999-11-01), Lee et al.
patent: 5999055 (1999-12-01), Kimura et al.
patent: 6150885 (2000-11-01), Ashby et al.
patent: 6600373 (2003-07-01), Bailey et al.
patent: 2004/0183598 (2004-09-01), Behzad
patent: 0726652 (1995-02-01), None
patent: 587 965 (1999-08-01), None
patent: 11168334 (1999-06-01), None
patent: 168938 (2003-06-01), None

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