CMOS-configured transconductance amplifier circuit

Details CMOS-configured transconductance amplifier circuit CMOS-configured transconductance amplifier circuit

2006-07-11

2006-07-11

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S264000

Reexamination Certificate

active

07075370

ABSTRACT:
A CMOS-implemented transconductance amplifier has an input gain stage coupled to a CMOS output stage. The inverting input of the input gain stage is coupled to an input/output port to which an input voltage is coupled. The CMOS output stage has a first, transconductance CMOS transistor pair, whose source-drain paths are series-coupled between first and second outputs of the input stage. A second, transimpedance CMOS transistor pair have their source-drain paths series-coupled between first and second power supply terminals, and gate inputs coupled to outputs of the input stage. A third CMOS transistor pair is coupled in parallel with the second CMOS transistor pair to form a pair of current mirror stages. The current output is coupled to a common connection of the third CMOS pair.

REFERENCES:
patent: 5585763 (1996-12-01), Navabi et al.
patent: 5649009 (1997-07-01), Enriquez et al.
patent: 6411163 (2002-06-01), Enriquez
patent: 6717470 (2004-04-01), Bowers
patent: 7-7337 (1995-01-01), None
patent: 8-18398 (1996-01-01), None

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