Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-09-12
2010-06-15
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S310000
Reexamination Certificate
active
07737780
ABSTRACT:
Embodiments of the present invention disclose operational amplifiers which demonstrate good settling behavior with minimum over-shoot or ringing for improving settling behavior. The amplifiers include one or more amplification stages connected to form a symmetric structure. The amplification stage includes a boosting amplifier, a MOS transistor and a compensation capacitor. The MOS transistor can be an NMOS transistor and a PMOS transistor. Using this scheme pole-zero doublets are rearranged in a manner to improve the transient settling response.
REFERENCES:
patent: 4573020 (1986-02-01), Whatley
patent: 5039954 (1991-08-01), Bult et al.
patent: 5748040 (1998-05-01), Leung
patent: 5764101 (1998-06-01), Archer
patent: 6114907 (2000-09-01), Sakurai
patent: 6177838 (2001-01-01), Chiu
patent: 6353361 (2002-03-01), Sun
patent: 6362688 (2002-03-01), Au
patent: 6411165 (2002-06-01), Delano
patent: 6529070 (2003-03-01), Nagaraj
patent: 6985038 (2006-01-01), Miwa et al.
Bult, K., Geelen, G., “A fast-settling CMOS operational amplifier for SC circuits with 90-db dc gain,” IEEE Journal of Solid State Circuits, Dec. 1990, pp. 1379-1394, vol. 25, No. 6.
Gray, Paul. R., et al., “Neutralization”, Analysis and Design of Analog Integrated Circuits, Feb. 14, 2001, pp. 849-850, 4th Ed.
Ahmadi, M. M., “A New Modeling and Optimization of Gain-Boosting Amplifier for High-Speed and Low-Voltage Applications”, IEEE Transaction on Circuits and Systems II, Mar. 2006, pp. 169-173, vol. 53, Issue 3.
Siliconix AN105, “FETs as Voltage-Controlled Resistors,” Mar. 10, 1997, pp. 1-6.
D'Souza Arnold James
Debnath Chandrajit
Malik Rakesh
Singh Pratap N
Graybeal Jackson LLP
Jorgenson Lisa K.
Nguyen Hieu P
Pascal Robert
Rusyn Paul F.
LandOfFree
Scheme for improving settling behavior of gain boosted fully... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scheme for improving settling behavior of gain boosted fully..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scheme for improving settling behavior of gain boosted fully... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4207564