Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-09-04
2007-09-04
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
Reexamination Certificate
active
11243831
ABSTRACT:
Amplifier systems are provided with bias generators that substantially stabilize operating points of system parameters (e.g., drain current and transconductance) over PVT variations, substantially reduce body effects and Early effects, and substantially reduce system output noise. These advantages are realized without significantly increasing system size and/or power consumption.
REFERENCES:
patent: 5512855 (1996-04-01), Kimura
patent: 5777518 (1998-07-01), Bailey
patent: 5973524 (1999-10-01), Martin
patent: 6323725 (2001-11-01), Goldblatt et al.
patent: 6407623 (2002-06-01), Bazarjani et al.
patent: 6737919 (2004-05-01), Cyrusian
patent: 6903601 (2005-06-01), Aude
Chen, Jiwei, “Novel Constant Transconductance References—with the Traditional Approach”, 2003 IEEE SSMSD2003, Feb. 2003, pp. 104-107.
Nicolson, Sean, et al., “Improvements in Biasing and Compensation of CMOS Op Amps”, 2004 IEEE, ISCAS 2004, May 2004, pp. I-665-I-668.
Carrillo, Juan M., et al., Input/Output Rail-to-Rail Op-Amp with Constant Behavior over the Entire Voltage Range, Integration, vol. 37, No. 1, Feb. 2004, 4 pages.
Analog Devices Inc.
Koppel, Patrick, Heybl & Dawson
Nguyen Hieu
Pascal Robert
LandOfFree
Amplifier systems with low-noise, constant-transconductance... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amplifier systems with low-noise, constant-transconductance..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier systems with low-noise, constant-transconductance... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3793291