Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1999-05-14
2000-12-26
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327538, 323314, 323316, G05F 110
Patent
active
061665908
ABSTRACT:
Circuit useful as current mirror and/or current divider has a circuit topology containing mirror and reference transistor pairs, respectively provided by MOS P and N type transistors for the up and down mirrors. The mirror transistor in each pair is followed by a buffer transistor which provides the current output. The topology obtains equal input and output currents through the DC biasing of the reference and mirror transistors by providing equality of the D to S and G to S voltages operative in both the reference and mirror transistors of both mirrors. The topology provides matched performance for the up and down current mirrors with very high mirroring accuracy, design insensitive up and down mirrored current, excellent operation over a wide power supply range, temperature insensitive precision, and the possibility of conveniently obtaining a wide range of current divisions. This topology is appropriate for those applications in which precise current handling and division is necessary such as high accuracy A/D and D/A converters, reference cells, current subtractors, and high precision current comparators.
REFERENCES:
patent: 4360866 (1982-11-01), Main et al.
patent: 4431986 (1984-02-01), Haque et al.
patent: 4638184 (1987-01-01), Kimura
patent: 4825099 (1989-04-01), Barton
patent: 4933648 (1990-06-01), Frogge
patent: 4973857 (1990-11-01), Hughes
patent: 5045773 (1991-09-01), Westwick et al.
patent: 5475336 (1995-12-01), Singh et al.
patent: 5481179 (1996-01-01), Keeth
patent: 5512816 (1996-04-01), Lambert
patent: 5594382 (1997-01-01), Kato et al.
patent: 5612614 (1997-03-01), Barrett, Jr. et al.
patent: 5625281 (1997-04-01), Lambert
patent: 5680037 (1997-10-01), Carobolante
patent: 5686824 (1997-11-01), Rapp
patent: 5757226 (1998-05-01), Yamada et al.
patent: 5805005 (1998-09-01), Raisinghani et al.
patent: 6002245 (1999-12-01), Sauer
A.B. Grebene, "Bipolar and MOS Analog Integrated Circuit Design", John Wiley & Sons, Inc., 1984, pp. 169-277, 299-303, 771-823.
Toumazou et al., "Analogue IC Design: the current-mode approach", Peter Peregrinus Ltd., London 1990, pp. 238-343, 491-513.
Itakura et al. "High Output-Resistance CMOS Current Mirrors for Low Voltage Applications", IEICE Transactions of Fundamentals, Communications And Computer Sciences, vol. E80-A, No. 1, pp. 203-232, Jan. 1997.
Wasaki et al., "Current Multiplier/Divider Circuit", Electronics Letters, vol. 27, No. 6, pp. 504-506, Mar. 1991.
Zeki et al. "Accurate and high output impedance current mirror suitable for CMOS current output stages", Electronics Letters, vol. 33, No. 12, pp. 1042-1043, Jun. 1997.
Mulder et al. "High-swing cascode MOS current mirror", Electronics Letters, vol. 32, No. 14, pp. 1251-1252, Jul. 1996.
Akiya et al. "High-precision MOS current mirror", IEE Proceedings I, vol. 131, No. 5, pp. 170-175, Oct. 1984.
Serrano et al. "The Active-Input Regulated-Cascode Current Mirror", IEEE Transactions on Circuits and Systems I:Fundamental Theory and Applications, vol. CAS I-41, No. 6, pp. 464-467, Jun. 1994.
Sackinger et al. "A High-Swing, High-Impedence MOS Cascode Circuit", IEEE Journal of Solid-State Circuits, vol. 25, No. 1, pp. 289-298, Feb. 1990.
Yang et al. "An Active-Feedback Cascode Current Source", IEEE Transactions on Circuits and Systems, vol. 37, No. 5, pp. 644-646, May 1990.
Zarabadiol et al. "Very-High-Output-Impedance Cascode Current Source/Current Mirrors/Transresistance Stages and Their Applications", International Journal on Circuit Theory and Applications, vol. 20, No. 6, pp. 639-648, Nov.-Dec. 1992.
Lee et al. "A Self-Calibrating 15 Bit CMOS A/D Converter", Proceedings of the IEEE Symposium on VLSI Circuits, pp. 33-34, Jun. 1990.
Lin et al, "A 13 bit 2.5MHz Self-Calibrating Pipeline A/D Converter in 3 mCMOS", Proceedings of the IEEE Symposium on VLSI Circuits, p p. 33-34, Jun. 1990.
Friedman Eby
Secareanu Radu M.
Callahan Timothy P.
Lukacher Kenneth J.
Lukacher Martin
Luu An T.
The University of Rochester
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