- Adel Sedra
**Adel Sedra**is an Egyptianelectrical engineer whose research specialization ismicroelectronics , with particular emphasis on applications in communication and instrumentation systems. He received his bachelor of science in electrical engineering fromCairo University in 1964. This was followed by a master's degree in 1968 and a PhD in 1969, both from theUniversity of Toronto . He then became an assistant professor at the University of Toronto in 1969, and received promotions to associate professor in 1972 and professor in 1978. He served as chair of the Department of Electrical Engineering from 1986 to 1993, and was provost from 1993 to 2002. In 2003, he joined theUniversity of Waterloo as dean of its Faculty of Engineering. He has also co-authored three textbooks, including "Microelectronic Circuits" (co-authored with Prof.K.C. Smith ), which is one of the most widely used texts on the subject to date.Dr. Sedra teaches an undergraduate course in

Microelectronics every winter term to electrical and computerengineers .**Biography**Adel Sedra was born in

Egypt on November 2, 1943. He received the BSc. degree fromCairo University ,Egypt , in 1964, and the MASc. and PhD. degrees from theUniversity of Toronto ,Canada , in 1968 and 1969 respectively, all in Electrical Engineering.Dr. Sedra joined the faculty of the

University of Toronto in 1969, and was promoted to Associate Professor in 1972 and to Professor in 1978. During 1986-1993, he served as Chair of the Department of Electrical Engineering (now Electrical and Computer Engineering). On July 1, 1993 he assumed the position of Vice-President, Provost, and Chief Academic Officer of the University of Toronto.Professor Sedra specializes in the area of microelectronics. His research has centered on the theory and design of circuits for communication and instrumentation systems and has resulted in about one hundred and thirty papers. His earlier work (late 1960s) was on current-mode circuits and their use in active filter synthesis. In the course of this work, Sedra, together with K.C. Smith, invented the current conveyor, a popular circuit building block that has stimulated considerable interest two decades later.

Adel Sedra's later work on active-RC filter design provided both new circuits as well as general theories that served to tie together many seemingly disconnected circuit topologies. In the late seventies and early '80s he was one of the first few to work on the then emerging switched capacitor filter techniques. More recently, Professor Sedra's work has been on tuneable and adaptive integrated filters.

Professor Sedra has co-authored three textbooks. One of his books Microelectronic Circuits (Oxford University Press) first appeared in 1982, is currently in its fifth edition and has been translated into eight languages, and is currently in use at hundreds of Universities around the world. This book (co-authored by K.C. Smith) represents between its two authors nearly seventy years of thinking about, designing and teaching electronic circuits at all levels and in every possible technology.

Dr. Sedra has served as a consultant to industry and government in Canada and the U.S.A. He has helped found two centres-of-excellence, in information technology and microelectronics, and currently serves on the board of directors of a number of organizations dedicated to the promotion and sponsorship of research. He has also been active in professional societies, most notably the IEEE, serving in a variety of roles.

Dr. Sedra's research and educational activities have won him a number of awards and honours including: Fellow of IEEE (1984); the 1984 Darlington award, the 1987 Guillemin-Cauer Award, and the 1994 Education Award, all of the IEEE Circuits and Systems Society; Fellow, Ryerson Polytechnic University (1989); the 1993 Information Technology of Canada/NSERC Research Excellence Award; and the 1996 IEEE Education Medal.

Adel Sedra lives in Toronto with his wife Doris and two children, Paul and Mark.

**Publications****Refereed Journal Publications***S.A. Jantzi, K.W. Martin and A.S. Sedra, Quadrature Bandpass Modulator for Digital Radio, IEEE Journal of Solid-State Circuits, Vol. 32, No. 12, December 1997, pp 1935-1950.

*R. Duncan, K.W. Martin, and A.S. Sedra, A Q-Enhanced Active-RLC Bandpass Filter, IEEE Transactions on Circuits and Systems, Vol. 44, No. 5, May 1997, pp 341-347

*C. Ouslis, and A.S. Sedra, "Computer-Aided Filter Design: Programmability as a Solution," IEEE Circuits and Devices Magazine, May 1995, pp. 29-37.

*R.A. Duncan, K.M. Chan, and A.S. Sedra, "Designs For A Wideband Current Amplifier And A Current Conveyor", IEEE Transactions on Circuits and Systems, Vol. 41, No. 4, April, 1994, pp. 272-280.

*G.W. Roberts and A. S. Sedra, "Generalization of Intermediate Transfer Function Analysis Applied to Arbitrary Networks", Analog Integrated Circuits and Signal Processing, pp. 83-96, September 1993.

*K. A. Kozma, D. A. Johns and A. S. Sedra, "Tuning of Continuous-Time Filters in the Presence of Parasitic Poles", IEEE Transactions on Circuits and Systems, Vol. 40, No.1, pp. 13-20, January 1993.

*G. W. Roberts and A. S. Sedra, "A General Class of Current Amplifier-Based Biquadratic Filter Circuits", IEEE Transactions on Circuits and Systems, Vol. 39, No. 4, pp. 257-263, April 1992.

*K. A. Kozma, D. A. Johns and A. S. Sedra, "Automatic Tuning of Continuous-Time Integrated Filters Using an Adaptive Filter Technique", IEEE Transactions on Circuits and Systems, vol. 38, No. 11, pp. 1241-1248, November 1991.

*D.A. Johns, W.M. Snelgrove and A.S. Sedra, "Continuous-Time LMS Adaptive Recursive Filters", IEEE Transactions on Circuits and Systems, vol. 38, No.7, pp. 769-778, July 1991.

*G. W. Roberts and A. S. Sedra, "Synthesizing Switched-Current Filters By Transposing the SFG of Switched-Capacitor Filter Circuits", IEEE Transactions on Circuits and Systems, vol. 38, No. 3, pp. 337-340, March 1991.

*R. A. Duncan, K. C. Smith and A. S. Sedra, "Gallium Arsenide Pseudo-Current-Mode Logic", Electronics Letters, vol. 26, No. 25, pp. 2130-2132, December 1990.

*X. F. Wania, D. A. Johns and A. S. Sedra, "Programmable Multiplexed Switched-Capacitor Filters", Electronics Letters, vol. 26, No. 14, pp. 1051-1053, July 1990.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "Adaptive Recursive State-Space Filters Using a Gradient-Based Algorithm", IEEE Transactions on Circuits and Systems, vol. 37, No. 8, pp. 673-684, June 1990.

*A. S. Sedra, G. W. Roberts and F. Gohh, "The Current Conveyor: History, Progress and New Results", IEE Proceedings, vol. 137, Pt. G, No. 2, pp. 78-87, April 1990.

*G.W. Roberts and A.S. Sedra, "All-Current-Mode Frequency Selective Circuits", Electronics Letters, vol. 25, No. 12, pp. 759-760, June 1989.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "Orthonormal Ladder Filters", IEEE Transactions on Circuits and Systems, vol. CAS-36, No. 3, pp. 337-343, March 1989

*D. G. Nairn and A. S. Sedra, "AUTO-SC: An automated switched-capacitor design program", IEEE Circuits and Devices, vol. 4, No. 2, pp. 5-8, March 1988.

*D.A. Johns and A.S. Sedra, "State-Space Simulation of LC Ladder Filters", IEEE Trans. on Circuits and Systems, vol. CAS-34, pp. 986-988, August 1987.

*G.W. Roberts, W.M. Snelgrove and A.S. Sedra, "Switched-Capacitor Realization of nth-Order Transfer Function Using a Single Multiplexed Op Amp", IEEE Trans. on Circuits and Systems, vol. CAS-34, No. 2, pp.140-148, Feb. 1987.

*H.M. Sandler and A.S. Sedra, "Programmable Switched-Capacitor Low-Pass Ladder Filters", IEEE Journal of Solid-State Circuits, vol. SC-21, No. 6, pp.1109-1119, Dec. 1986.

*H.M. Sandler and A.S. Sedra, "Sine-Wave Generation Using a High-Order Lowpass Switched-Capacitor Filter", Electronics Letters, vol. 22. No.12, pp. 635-636, June 1986.

*W.M. Snelgrove and A.S. Sedra, "Synthesis and Analysis of State-Space Active filters Using Intermediate Transfer Functions", IEEE Trans. on Circuits and Systems, vol. CAS-33, No. 3, pp. 287-301, March 1986. (Winner of the 1987 Guillemin-Cauer Best Paper Award of the IEEE Circuits and Systems Society).

*G.W. Roberts, D.G. Nairn and A. S. Sedra, "On the Implementation of Fully Differential Switched-Capacitor Ladder Filters", IEEE Trans. on Circuits and Systems, vol. CAS-33, No. 3, pp. 452-455, April 1986.

*R. Datar and A.S. Sedra, "Exact Design of Strays-Insensitive Switched-Capacitor Ladder Filters", IEEE Trans. on Circuits and Systems, vol. CAS-30, No.12, pp. 888-898, Dec. 1983 (Winner of the 1984 Darlington Best Paper Award). Reprinted in the IEEE Press Book: Integrated Analog Filters, G. C. Temes, Ed., 1986.

*R. Datar and A.S. Sedra, "Exact Design of Strays-Insensitive Switched-Capacitor High-Pass Ladder Filters", Electronics Letters, vol.19, No. 24, pp.1010-1012, Nov. 24, 1983.

*W.M. Snelgrove and A.S. Sedra, " State-Variable Biquads with Optimum Integrator Sensitivities", Proceedings of the IEE, vol.128, Part G, No. 4, pp.173-175, Aug. 1981.

*K. Martin and A.S. Sedra, "Effect of the Op-Amp Finite Gain and Bandwidth on the Performance of Switched-Capacitor Filters", IEEE Trans. on Circuits and Systems, vol. CAS-28, No. 8, pp. 822-829, Aug.1981. Reprinted in the IEEE Press Book: MOS Switched-Capacitor Filters --Analysis and Design, G.S. Moschytz, Ed., 1984.

*K. Martin and A.S. Sedra, "Switched-Capacitor Building Blocks for Adaptive Systems", IEEE Trans. on Circuits and Systems, Joint (with the Trans. on Audio, Speech and Signal Processing) Special Issue on Adaptive Signal Processing, vol. CAS-28, No. 6, pp. 576-584, June 1981.

*A.S. Sedra, M. Ghorab and K. Martin, "Optimum Configurations for Single-Amplifier Biquadratic Filters", IEEE Trans. Circuits and Systems, vol. CAS-27, No.12, pp.1155-1163, Dec. 1980.

*B. Frohlich, A.N.Venetsanopoulos and A.S. Sedra, "On the Dynamic Range of Wave Digital Filters", IEEE Trans. Circuits and Systems, vol. CAS-27, No.10, pp. 964-967, Oct. 1980.

*R. MacKay and A.S. Sedra, "Generation of Low-Sensitivity State-Space Active Filters", IEEE Trans. Circuits and Systems, vol. CAS-27, No.10, pp. 863-870, Oct. 1980.

*K. Martin and A.S. Sedra, "Easing Prefiltering Requirements of S.C. Filters", Electronics Letters, vol.16, No.16, pp. 613-614, July 31, 1980.

*K. Martin and A.S. Sedra, "Exact Design of Switched-Capacitor Bandpass Filters Using Coupled-Biquad Structures", IEEE Trans. Circuits and Systems, vol. CAS-27, No. 6, pp. 469-475, June 1980. Reprinted in the IEEE Press Book: MOS Switched-Capacitor Filters --Analysis and Design, G.S. Moschytz, Ed., 1984. Also reprinted in the IEEE Press Book: Integrated Analog Filters, G. C. Temes, Ed., 1986.

*K. Martin and A.S. Sedra, "Transfer Function Deviations due to the Resistor-SC Equivalence Assumption in Switched-Capacitor Simulations of LC Ladders", Electronics Letters, vol.16, No.10, pp. 387-389, May 9, 1980.

*K. Martin and A.S. Sedra, "Strays-Insensitive Switched-Capacitor Filters Based on Bilinear z-Transform", Electronics Letters, vol.15, No.13, pp. 365-366, June 21, 1979. Reprinted in the IEEE Press Book: MOS Switched-Capacitor Filters --Analysis and Design, G.S. Moschytz, Ed., 1984.

*A.S. Sedra and L. Brown, "A Refined Classification of Single Amplifier Filters", Int. Journal of Circuit Theory and Applications, vol. 7, pp.127-137, March 1979. Reprinted in the book "Modern Active Filter Design", R. Schaumann, M.A. Soderstrand and K.R. Laker, Editors, IEEE Press, 1981.

*K. Martin and A.S. Sedra, "Design of Signal Flow Graph Active Filters", IEEE Trans. Circuits and Systems, vol. CAS-25, No. 4, pp.185-195, April 1978. Reprinted in the book "Modern Active Filter Design", R. Schaumann, M.A. Soderstrand and K.R. Laker, Editors, IEEE Press, 1981.

*L. Brown and A.S. Sedra, "New Multifunction Biquadratic Filter Circuit with Inherently Stable Q-Factor", Electronics Letters, vol.13, No. 24, pp. 719-721, Nov. 1977.

*K. Martin and A. S. Sedra, "Optimum Design of Active Filters Using the Generalized Immittance Converter", IEEE Trans. Circuits and Systems, vol. CAS-24, No. 9, pp. 495-503, Sept. 1977.

*K. Martin and A.S. Sedra, "Designing Leap-Frog and SFG Filters with Optimum Dynamic Range", Proc. IEEE (Lett.), vol. 65, No. 8, pp.1210-1211, Aug. 1977.

*K. Martin and A.S. Sedra, "On the Stability of the Phase-Lead Integrator", IEEE Trans. Circuits and Systems, vol. CAS-24, No. 6, pp. 321-324, June 1977.

*R. MacKay and A.S. Sedra, "Sensitivity Evaluation and Comparison for High-Order Active Filters", Int. J. Circuit Theory and Applications, vol. 4, pp. 345-356, Sept. 1976.

*P.O. Brackett and A.S. Sedra, "Active Compensation for High Frequency Effects in Op Amp Circuits with Applications to Active-RC Filters", IEEE Trans. on Circuits and Systems, vol. CAS-23, No. 2, pp. 68-72, Feb.1976. Reprinted in the book "Modern Active Filter Design", R. Schaumann, M.A. Soderstrand and K.R. Laker, Editors, IEEE Press, 1981.

*P.O. Brackett and A.S. Sedra, "Direct SFG Simulation of LC Ladder Networks with Applications to Active Filter Design", IEEE Trans. on Circuits and Systems, vol. CAS-23, No. 2, pp. 61-67, Feb. 1976.

*A.S. Sedra and J.L. Espinoza, "Sensitivity and Frequency Limitations of Biquadratic Active Filters", IEEE Trans. on Circuits and Systems, vol. CAS-22, pp.122-130, Feb.1975. Reprinted in the book "Modern Active Filter Design", R. Schaumann, M.A. Soderstrand and K.R. Laker, Editors, IEEE Press, 1981.

*A. Druzeta, Z.G. Vranesic and A.S. Sedra, "Application of Multithreshold Elements in the Realization of Many-Valued Logic Networks", IEEE Trans. on Computers, vol. C-23, No.10, pp.1194-1198, Oct. 1974.

*A.S. Sedra, "Generation and Classification of Single Amplifier Active Filters", Int. Journ. of Circuit Theory and Applications, vol. 2, No.1, pp. 51-67, March 1974.

*A.S. Sedra and W.L. Brown, "A Simple All-Pass Network with Complex Poles and Zeros", IEEE Trans. on Circuit Theory, vol. CT-20, No. 4, pp. 445-446, July 1973.

*R.G. Sparkes and A.S. Sedra, "Programmable Active Filters", IEEE Journ. of Solid State Circuits, vol. SC-8, No.1, pp. 93-95, Feb. 1973.

*K.C. Smith and A.S. Sedra, "The Kirchhoff Data Link", IEEE Trans. on Inst. and Meas., vol. IM-21, No. 3, pp. 288-291, Aug. 1972.

*A.S. Sedra, "A Class of Stable Active Filters Using Unity-Gain Voltage Followers", IEEE Journ. of Solid State Circuits, vol. SC-7, No. 4, pp. 311-315, Aug.1972. Reprinted in "Benchmark Papers in Electrical Engineering", vol.15, pp. 21-25, L.P. Huelsman, Ed., Dowden, Hunchison and Ross, Stroudsburg, PA, 1976.

*T.A. Hamilton and A.S. Sedra, "A Single Amplifier Biquad Active Filter", IEEE Trans. on Circuit Theory, vol. CT-19, No. 4, pp. 398-403, July 1972.

*S.A. Boctor and A.S. Sedra, "On the Synthesis of RC Bandpass Filters", IEEE Trans. on Circuit Theory, vol. CT-19, No. 4, pp. 374-376, July 1972.

*M.C. Agarwal and A.S. Sedra, "On Designing Sharp Cutoff Low-Pass Filters", IEEE Trans. on Audio and Electroacoustics, vol. AU-20, No. 2, pp.138-141, June 1972.

*A.S. Sedra, S.G. Zaky and K.C. Smith, "A Feedback Model for Active N-port Networks Derived from a Concept of Port-Orientation", IEEE Trans. on Circuit Theory, vol. CT-19, No. 2, pp.168-175, March 1972.

*T.A. Hamilton and A.S. Sedra, "Some New Configurations for Active Filters", IEEE Trans. on Circuit Theory, vol. CT-19, No.1, pp. 25-33, Jan. 1972.

*G.G.A. Black, R.T. Friedmann and A.S. Sedra, "Gyrator Implementation with Integrable Current Conveyors", IEEE Journ. of Solid State Circuits, vol. SC-6, No. 6, pp. 396-399, Dec. 1971.

*S. Boctor and A.S. Sedra, "Realization of Non-Minimum Phase Transfer Functions Using Twin-T RC Networks", IEEE Trans. on Circuit Theory, vol. CT-18, No. 4, pp. 471-475, July 1971.

*K.C. Smith and A.S. Sedra, "Realization of the Chua Family of New Nonlinear Network Elements Using the Current Conveyor", IEEE Trans. on Circuit Theory, vol. CT-17, No.1, pp.137-138, Feb. 1970.

*A.S. Sedra and K.C. Smith, "A Second Generation Current Conveyor and its Applications", IEEE Trans. on Circuit Theory, vol. CT-17, No.1, pp.132-133, Feb. 1970.

*K.C. Smith and A.S. Sedra, "A New Simple Accurate Wide-Band Current Measuring Device", IEEE Trans. on Inst. & Meas., vol. IM-18, No. 2, pp.125-128, June 1969.

*K.C. Smith and A.S. Sedra, "The Current Conveyor -A New Circuit Building Block", Proc. of the IEEE, vol. 56, No. 8, pp.1368-1369, Aug. 1968.**Papers Presented at Conferences***S.A. Jantzi, K.W. Martin and A.S. Sedra, A Quadrature Bandpass Delta-Sigma Modulator for Digital Radio, the 1997 International Solid-State Circuits Conference (ISSCC), Digest of Technical Papers, pp 216-217, San Francisco, Calif., February 1997

*S. Jantzi, K. Martin and A. Sedra, "The Effects of Mismatch in Complex Bandpass Modulators", proceedings of the 1996 IEEE International Symposium on Circuits and Systems, vol. 1, pp. 227-230, Atlanta, Ga., May 1996.

*K.A. Kozma, D.A. Johns, and A.S. Sedra, "An Approach for Tuning High-Q Continuous-Time Bandpass Filters", proceedings of the IEEE International Symposium on Circuits and Systems, pp 1037-1040, Seattle, Wash., May 1995.

*R. Duncan, K. Martin, A. Sedra, "A 1 GHz Quadrature Sinusoidal Oscillator", proceedings of the IEEE Custom Integrated Circuits Conference, pp. 91-94, Santa Clara, Calif., May 1995.

*S.A. Jantzi, K.W. Martin, W.M. Snelgrove, and A.S. Sedra, "A Complex Bandpass Delta-Sigma Converter for Digital Radio," proceedings of the IEEE International Symposium on Circuits and Systems, pp. 433-436, London, U.K., May 1994.

*S.A. Jantzi, C. Ouslis and A.S. Sedra, "The Design of Transfer Functions for Delta-Sigma Converters," proceedings of the IEEE International Symposium on Circuits and Systems, pp. 453-456, London, U.K., May 1994.

*A.S. Munshi, D.A. Johns, A.S. Sedra, "Adaptive Impedance Matching", proceedings of the IEEE International Symposium on Circuits and Systems, pp. 69-72, London, U.K., May 1994.

*C. Ouslis and A.S. Sedra, "Automated Generation of Switched-Capacitor Filters", the Canadian Conference on Very-Large Scale Integration, Proceedings pp. 1B-7-1B-12, Banff Springs, Alberta, November 1993.

*A.S. Munshi, D.A. Johns, an A.S. Sedra, "Equalization and linearization via linear negative feedback," IEEE International Symposium on Circuits and Systems, Proceedings pp. 2502-2505, Chicago, May 1993

*R. A. Duncan, K. W. Martin and A. S. Sedra, "A Q-Enhanced Active-RLC Bandpass Filter", IEEE International Symposium on Circuits and Systems, Proceedings pp. 1416-1419, Chicago, May 1993.

*B. M. Silveira, C. Ouslis and A. S. Sedra, "Passive Ladder Synthesis in filtorX", IEEE International Symposium on Circuits and Systems, Proceedings pp. 1431-1434, Chicago, May 1993.

*C. Ouslis, A. S. Sedra, W. M. Snelgrove and S. Good, "filtorX: computer-aided filter design and industry", CCVLSI, Halifax, Nova Scotia, pp. 180-187, October 1992.

*K. A. Kozma, D. A. Johns and A. S. Sedra, "On the Tuning of Continuous-Time Integrated Filters, Including Parasitic Effects", IEEE International Symposium on Circuits and Systems, Proceedings pp. 835-839, San Diego, May 1992.

*C. Ouslis, W. M. Snelgrove and A. S. Sedra, "Multi-rate Switched Capacitor Filter Design: filtorX in action", IEEE International Symposium on Circuits and Systems, Proceedings pp. 1183-1187, San Diego, May 1992.

*E. P. Nowicki, S. B. Dewan and A. S. Sedra, "Design of a 3-phase controlled rectifier system employing open-loop predictive ride-through control", IEEE IAS Annual Meeting, Dearborn, MI, pp. 879-885, September/October 1991.

*A. S. Sedra and G. W. Roberts, "The Current Conveyor: Theory and Practice", presented at the Workshop on Current Mode Circuits, 1991 European Conference on Circuit Theory and Design, Copenhagen, Denmark, September 1991.

*E. P. Nowicki, S. B. Dewan and A. S. Sedra, "Characterization of Transient Operation Modes for a 3-phase Controlled Rectifier Under Open-loop Predictive Ride-through Control", IEEE Power Electronics Specialists Conference, pp. 853-858, Boston, MA, June 1991.

*G. W. Roberts and A. S. Sedra, "A General Class of Current Amplifier-Based Biquadratic Filter Circuits", 1991 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 1821-1825, Singapore, June 1991.

*C. Ouslis, W. M. Snelgrove and A. S. Sedra, "A Filter Designer's Filter Design Aid: filtorX", 1991 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 376-379, Singapore, June 1991.

*K. M. Chan, R. A. Duncan and A. S. Sedra, "High-Performance Current Amplifier and Current Conveyor", 1991 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 1825-1828, Singapore, June 1991.

*E. P. Nowicki, S. B. Dewan and A. S. Sedra, "Improved Transient Performance of a 3-phase Controlled Rectifier Using Predictive Control", IEEE Applied Power Electronics Conference, Dallas, Texas, pp. 247-253, March 1991.

*X. F. Wania, D. A. Johns and A. S. Sedra, "Programmable Multiplexed Switched-capacitor Filter", Proceedings of the 33rd Midwest Symposium on Circuits and Systems, Calgary, Alberta, pp. 973-976, August 1990.

*C. Ouslis, W. M. Snelgrove and A. S. Sedra, "Filtor X: An Interactive Design Language for Filters", Advances in Electrical Engineering Software, First International Conference on Electrical Engineering Analysis and Design, Lowell, Massachusetts, Springer Verlag, pp. 227-240, August 1990.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "Performance Improvement for Fine-Tuned Adaptive Recursive Filters", IEEE International Symposium on Circuits and Systems, pp. 1951-1954, New Orleans, LA, May 1990.

*K. A. Kozma, D. A. Johns and A. S. Sedra, "An Adaptive Tuning Circuit for Integrated Continuous-Time Filters", IEEE International Symposium on Circuits and Systems, pp. 1163-1166, New Orleans, LA, May 1990.

*G. W. Roberts and A. S. Sedra, "Adjoint Networks Revisited", IEEE International Symposium on Circuits and Systems, pp. 540-544, New Orleans, LA, May 1990.

*G. W. Roberts and A. S. Sedra, "The Formation of Finite Transmission Zeros in Operational Simulation Circuits", 1989 European Conference on Circuit Theory and Design, pp. 358-362, Brighton, U.K., September 1989.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "DC Offsets in Analogue Adaptive IIR Filters", 1989 European Conference on Circuit Theory and Design, pp. 137-141, Brighton, U.K., September 1989.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "Nonideal Effects in Continuous-Time Adaptive Recursive Filters", 1989 32nd Midwest Symposium of Circuits and Systems, pp. 594-597, Urbana, IL, August 1989.

*A. S. Sedra, "The Current Conveyor - History and Progress", IEEE International Symposium on Circuits and Systems, pp. 1567-1570, Portland, OR, May 1989.

*G. W. Roberts and A. S. Sedra, "A Generalization of Intermediate Transfer Function Analysis to Arbitrary Linear Networks", IEEE International Symposium on Circuits and Systems, pp. 1059-1062, Portland, OR, May 1989.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "Continuous-Time Analog Adaptive Recursive Filters", IEEE International Symposium on Circuits and Systems, pp. 667-670, Portland, OR, May 1989.

*G. W. Roberts and A. S. Sedra, "Switched-Capacitor Filter Networks Derived From General Parameter Bandpass LC Ladder Networks", IEEE International Symposium on Circuits and Systems, pp. 1005-1008, Helsinki, Finland, June 1988.

*D. A. Johns, W. M. Snelgrove and A. S. Sedra, "State-Space Adaptive Recursive Filters", IEEE International Symposium on Circuits and Systems", pp. 2153-2156, Helsinki, Finland, June 1988.

*E. P. Nowicki, W. M. Snelgrove and A. S. Sedra, "Circuit Layout of State-Multiplexed Switched-Capacitor Filters", CCVLSI-87, Winnipeg, Manitoba, Proceedings, pp. 43-48, October 1987.

*D. A. Johns, A. S. Sedra and W. M. Snelgrove, "Orthogonal Filters and Singly-Terminated LC Ladders", 1987 Midwest Symposium on Circuits and Systems, Syracuse, NY, Proceedings, pp. 761-764, August 1987.

*E. P. Nowicki, A. S. Sedra and W. M. Snelgrove, "A Switched-Capacitor Filter Topology Suitable for a Silicon Compiler", 1987 Midwest Symposium on Circuits and Systems, Syracuse, NY, Proceedings, pp.1177-1180, August 1987.

*G.V. Eaton, D.G. Nairn, W.M. Snelgrove and A.S. Sedra, "SICOMP: A Silicon Compiler for Switched-Capacitor Filters", 1987 IEEE International Symposium on Circuits and Systems, Philadelphia, PA., Proceedings, pp. 321-324, May 1987.

*G.W. Roberts, W.M. Snelgrove and A.S. Sedra, "SC Circuit Simulation of State-Space Formulations Derived from LC Ladder Network Prototypes", 1987 IEEE International Symposium on Circuits and Systems, Philadelphia, PA., Proceedings, pp. 722-725, May 1987.

*H.M. Sandler and A.S. Sedra, "A Programmable Switched-Capacitor Low-Pass Ladder Filter", Digest of the1986 Canadian Conference on Very Large Scale Integration, pp. 253-258, Montreal, Canada, October 1986.

*D.G. Nairn and A.S. Sedra, "Circuit and Design Techniques for Fully-Differential Switched-Capacitor Filters", 1986 IEEE International Symposium on Circuits and Systems, San Jose, CA, Proceedings, pp. 603-606, May 1986.

*G.W. Roberts, W.M. Snelgrove and A.S. Sedra, "Switched-Capacitor State-Space Filters Using Intermediate-Function Synthesis", 1986 IEEE International Symposium on Circuits and Systems, San Jose, CA, Proceedings, pp. 614-617, May 1986.

*Q. Liu, W.M. Snelgrove and A.S. Sedra, "Switched-Capacitor Implementation of Complex Filters", 1986 IEEE International Symposium on Circuits and Systems, San Jose, CA, Proceedings, pp.1121-1124, May 1986.

*G.W. Roberts, W.M. Snelgrove and A.S. Sedra, "Switched-Capacitor Realization of nth Order Transfer Function Using a Single Multiplexed Op Amp", 1985 Midwest Symposium on Circuits and Systems, Louisville, Kentucky, Proceedings, pp. 621-624, Aug. 1985.

*A.S. Sedra, "Design and Application of Switched-Capacitor Filters", 1985 North American Radio Science Meeting, Vancouver, B.C., Abstracts, pp. 309, June 1985.

*A.S. Sedra, W.M. Snelgrove and R. Allen, "Complex Bandpass Filters Designed by Linearly Shifting Real Low-Pass Prototypes", Proc. of the1985 International Symposium on Circuits and Systems, pp. 1223-1226, Kyoto, Japan, June 5-7, 1985.

*A.S. Sedra, R.B. Datar and M.W. Chomik, "High-Frequency Switched Capacitor Filters: Performance Limitations and Design Considerations", 1984 IEEE International Symposium on Circuits and Systems Montreal, Canada, Proceedings, pp. 646-650, May 1984.

*A.E.M. Przybylski and A.S. Sedra, "Speech Recognition Feature Extraction Using Switched-Capacitor Techniques in a VLSI Circuit", 1984 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 160-164, Montreal, Canada, May 1984.

*R. Datar and A.S. Sedra, "Exact Design of Strays-Insensitive Switched-Capacitor Ladder Filters", 1983 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 590-593, Newport Beach, CA, May 2-4, 1983.

*J.S. Martinez, E. Sanchez-Sinencio and A.S. Sedra, "Effects on the Performance of a Pair of Strays-Insensitive Biquads Due to the Op-Amp Gain-Bandwidth Product", The1982 IEEE International Symposium on Circuits and Systems, Proceedings, pp. 373-376, Rome, Italy, May 1982.

*W.M. Snelgrove and A.S. Sedra, "A Novel Approach to Transfer-Function Error Modeling with Applications to Filter Approximation", The1982 IEEE International Symposium on Circuits and Systems, Proceedings, pp.1127-1131, Rome, Italy, May 1982.

*G.R. Lang, P. Liu and A.S. Sedra, "Ladder Synthesis Using the Product Method in the s-Domain", Eleventh Biennial Symposium on Communications, Queen's University, Kingston, Ont., June 1982.

*N.A. Losic, A.S. Sedra and S.B. Dewan, "A Phase-Locked DC Servo System for Contouring Numerical Control", IEEE Industry Applications Society Annual Meeting, Proceeding, pp. 1203-1210, Oct. 5-9, 1981.

*A.S. Sedra, "Design of Strays-Insensitive Switched Capacitor Filters -A Review", invited paper presented at the1981 European Conference on Circuit Theory and Design, The Hague, The Netherlands, Aug. 25-28, 1981.

*W.M. Snelgrove and A.S. Sedra, "State-Space Synthesis of Complex Analog Filters", invited paper presented at the1981European Conference on Circuit Theory and Design, Proceedings, pp. 420-424, The Hague, The Netherlands, Aug. 25-28, 1981.

*K. Martin and A.S. Sedra, "Switched-Capacitor Building Blocks for Adaptive Systems", invited paper presented at the1981 IEEE Int. Symp. on Circuits and Systems, Proceedings, pp. 517-518, Chicago, Illinois., April 27-29, 1981.

*A.S. Sedra, "Optimum Configurations for Biquadratic Active-RC Filters", invited paper presented at the 1980 European Conference on Circuit Theory and Design, Warsaw, Poland, Proceedings, pp. 511-521, Sept. 1980.

*W.M. Snelgrove and A.S. Sedra, " A Novel Synthesis Method for State-Space Active Networks", Midwest Symposium on Circuits and Systems, Toledo, Ohio, pp.196-200, Aug. 1980.

*K. Martin and A.S. Sedra, "Effects of the Op Amp Finite Gain and Bandwidth on the Performance of Switched-Capacitor Filters", 1980 IEEE Int. Symp. on Circuits and Systems, pp. 321-325, Houston, Texas, April 1980.

*K. Martin and A.S. Sedra, "Exact Design of Switched-Capacitor Bandpass Filters Using Coupled-Biquad Structures", 1980 IEEE Int. Symposium on Circuits and Systems, pp. 338-341, Houston, Texas, April 1980.

*R. Sparkes and A.S. Sedra, "An Adaptive Tracking Harmonic Compressor", 1980 IEEE Int. Symp. on Circuits and Systems, pp. 229-232, Houston, Texas, April 1980.

*A.S. Sedra, "A Modern Course on Filter Design as an Alternative to Traditional Network Synthesis Courses", 1979 Frontiers in Education Conference, Proceedings, pp.172-176, Niagara Falls, Ont., Oct. 1979.

*K. Martin and A.S. Sedra, "Some Applications of the Switched-Capacitor Technique in Conjunction with Phase-Lock Loop", 1979 IEEE Int. Symp. on Circuits and Systems, pp. 770-771, Tokyo, Japan, July 1979.

*R. MacKay and A.S. Sedra, "Generation of Low-Sensitivity State-Space Active Filters", 1979 IEEE Int. Symp. on Circuits and Systems, pp. 918-921, Tokyo, Japan, July 1979.

*W.M. Snelgrove and A.S. Sedra, "Optimization of Dynamic Range in Cascade Active Filters", 1978 IEEE Int. Symp. on Circuits and Systems, pp.151-155, New York, May 1978.

*A.S. Sedra and L. Brown, "A Refined Classification of Single Amplifier Filters", 1978 IEEE Int. Symp. on Circuits and Systems, pp. 850-854, New York, May 1978.

*K. Martin and A.S. Sedra, "Comparison of High-Order Active Filters", IEEC&E, Digest, pp. 260-261, Toronto, Sept. 1977.

*K. Martin and A.S. Sedra, "Optimum Design of Active Filters Using Generalized Immittance Converters", 1977 IEEE Int. Symp. on Circuits and Systems, pp. 335-338, Phoenix, Ariz., April 1977.

*V.S. Chow, A.S. Sedra and Z.G. Vranesic, "A Computer Aided System for Circuit Design and Testing", IEEC&E Digest, pp. 224-225, Toronto, Oct. 1975.

*K. Martin, P.0. Brackett and A.S. Sedra, "An Active-RC Channel Bank Filter", IEEC&E, Digest, pp. 92-93, Toronto, Oct. 1975.

*P.O. Brackett and A.S. Sedra, "Application of Signal Flow Graphs to the Synthesis of Linear Systems: Part II -Design of active Ladder Filters", 1975 IEEE Int. Symp. on Circuits and Systems, pp. 246-249, Boston, Mass., April 1975.

*P.O. Brackett and A.S. Sedra, "Application of Signal Flow Graphs to the Synthesis of Linear Systems: Part I-A General Theory of Network Simulation", 1975 IEEE Int. Symp. on Circuits and Systems, pp.242-245, Boston, Mass., April 1975.

*A. Druzeta, A.S. Sedra and Z.G. Vranesic, "Multi-Threshold Multi-Valued Logic Circuits", Proc. of the Twelfth Annual Allerton Conference on Circuit and System Theory, pp. 547-556, Oct. 1974 (Invited paper).

*A.S. Sedra and J.L. Espinoza, "Sensitivity and Frequency Limitations of Biquadratic Active Filters", 1974 IEEE Int. Symp. on Circuits and Systems, pp. 645-650, San Francisco, CA., April 1974.

*R.G. Sparkes and A.S. Sedra, "A Tracking Biquad Active Filter", 1974 IEEE Int. Symp. on Circuits and Systems, pp. 585-589, San Francisco, CA, April 1974 (Invited paper).

*A.S. Sedra, "Classification of One-and Two-Amplifier Active Filters with Applications", IEEE Workshop on Active Filters, Arden House, Harriman, NY, Nov. 1973.

*A. Druzeta and A.S. Sedra, "Multi-Threshold Circuits in the Design of Multi-Stage Storage Elements", 1973 Int. Symp. on Multiple-Valued Logic, Digest, pp. 49-58, Toronto, May 1973.

*A.S. Sedra, "Generation and Classification of Single Amplifier Filters", Int. Filter Symp., Digest, pp.10-11, Santa Monica, CA, April 1972.

*T.A. Hamilton and A.S. Sedra, "A Single Amplifier Biquad Active Filter", 1972 IEEE Int. Symp. on Circuit Theory, pp. 355-359, North Hollywood, CA, April 1972.

*S.A. Boctor and A.S. Sedra, "On the Synthesis of RC Bandpass Filters", Fifth Asilomar Conference on Circuits and Systems, pp. 334-338, Nov. 1971.

*M.C. Agarwal and A.S. Sedra, "Automated Design of Recursive Digital Filters", Fifth Asilomar Conference on Circuits and systems, pp. 334-338, Nov. 1971.

*T.A. Hamilton and A.S. Sedra, "A Novel Application of a Gyrator Type Circuit", Fifth Asilomar Conference on Circuits and Systems, pp. 343-348, Nov. 1971.

*G.G.A. Black, T.A. Hamilton, A.S. Sedra and D. McNeill, "Phase Locked Loop Receiver for Remote Measurement of Terrain Resistivity", Int. Electronics Conference, Digest, pp.132-133, Toronto, Oct. 1971.

*A.D. Challoner, I.H. Rowe and A.S. Sedra, "A High Speed Data Acquisition System for a Time-of-Flight Mass Spectrometer", Int. Electronics Conference, Digest, pp.120-121, Toronto, Oct. 1971.

*A.S. Sedra, "A Survey of Recent Trends in Active Filter Design", 1971 Int. Communications Conference, Digest, pp. 3.9-3.17 (Invited paper), Montreal, Canada, June 1971.

*P. Krykorka and A.S. Sedra, "Cascade Realization of Time Variable Networks", The Fourth Asilomar Conference on Circuits and Systems, pp. 672-678, CA, Nov. 1970.

*T.A. Hamilton and A.S. Sedra, "Easily Cascadable Active Sections for High Selectivity Band-Pass, All-Pass and Notch Filters", The Fourth Asilomar Conference on Circuits and Systems, pp. 587-590, Pacific Grove, CA, Nov. 1970.

*T.A. Hamilton and A S. Sedra "A New Low Sensitivity High-Q Active Filter Configuration Using a Single IC Op Amp", 1970 IEEE Int. Symp. on Circuit Theory, Digest of Technical Papers, pp.171-172, Atlanta, GA., Dec. 1970.

*A.S. Sedra and K.C. Smith, "A New Approach to Active Network Synthesis", 1969 IEEE Int. Symp. on Circuit Theory, Digest of Technical Papers, pp.107-109, San Francisco, Calif., Dec. 1969.

*A.S. Sedra and K.C. Smith, "A Second Generation Current Conveyor and its Applications", 1968 IEEE Int. Symp. on Circuit Theory, Digest, p. 29, Miami Beach, Florida, Dec. 1968.

*A.S. Sedra and K.C. Smith, "Design of Computer Controllable Instrumentation", 6th National Conference of the Computer Society of Canada, Kingston, Ontario, June 1968.**Books***A.S. Sedra and K.C. Smith, Microelectronic Circuits, Holt, Rinehart and Winston, New York, 927 pages, April 1982. Covers the core undergraduate electronic circuits curriculum. International edition published by Holt-Saunders. Spanish translation published in 1985. Second edition published Jan. 1987 (1000 pages). Hebrew translation (1989), Korean translation (1991 and 1996). Currently in use in over 150 universities. Third edition published April 1991 (1100 pages). Also Greek, Italian, Portuguese, Chinese, and Persian translations. Currently published by Oxford University Press, New York. Fourth edition, June 1997 (1300 pages). Estimated sale, world wide over 400,000 copies.

*G.W. Roberts and A.S. Sedra, Spice for Microelectronic Circuits, Saunders College Publishing, Philadelphia, (630 pages), June 1992. Second edition published by Oxford University Press, 1997.

*A.S. Sedra and P.O. Brackett, Filter Theory and Design: Active and Passive, Matrix Publishers, Portland, OR., 785 pages, July 1978. This is a senior undergraduate/graduate level text and reference book.**Other Publications***A. S. Sedra and C. J. Tuohy, "Planning for 2000: A Provostial White Paper on University Objectives", Published as a Special Edition of the University of Toronto Bulletin, Feb. 14, 1994, 28 pages.

*A. S. Sedra and G.W. Roberts, "Sampled-Data Analog Filters, Chapter 9 in ANALOG VLSI: Signal and Information Processing, M. Ismail and T. Fiez (Editors), McGraw-Hill Inc., New York, New York, pp. 414-466, 1994.

*G. W. Roberts and A. S. Sedra, "A Switched-Capacitor To Switched-Current Conversion Method", Switched-Current Techniques For Analogue VLSI, C. Toumazou, J. B. Hughes and N. Battersby (Editors), Peter Peregrinus Limited, London, England, pp. 232-252, 1993.

*A. S. Sedra, "Issues in the Teaching of Analog Circuits in the 1990s" at the Workshop on Analog Design", 1992 IEEE International Symposium on Circuits and Systems, San Diego, May 1992.

*A. S. Sedra and G. W. Roberts, "Sampled-Data Analog Filters", at the Workshop on Analog VLSI Circuits, 1992 IEEE International Symposium on Circuits and Systems, San Diego, May 1992.

*A. S. Sedra and G. W. Roberts, "Current Conveyor: Theory and Practice", Chapter 3 in Analog IC Design: The Current-Mode Approach, C. Toumazou, F. J. Lidgey and D. Haigh, Editors, Peter Peregrinus, Ltd., U.K., pp. 93-126, May 1990.

*A. S. Sedra, "Active-RC Filters", Chapter 3 in "Miniaturized Filters", S. K. Mitra and C. F. Kurth, Eds., Wiley, pp. 87-123, 1989.

*K.R. Laker and A.S. Sedra, "Foreword to the Joint Special Issue of the IEEE Transactions on Circuits and Systems and the IEEE Journal of Solid-State Circuits on VLSI Analog and Digital Signal Processing, Feb.1986.

*A.S. Sedra, "Switched-Capacitor Filter Synthesis", Chapter 9 in "Design of MOS VLSI Circuits for Telecommunications", Y. Tsividis and P. Antognetti, Editors, pp. 272-313, Prentice-Hall, Englewood Cliffs, N.J., 1985.

*A.S. Sedra, "Introduction to Active Filters", Chapter 1 in RC-Active Filter Design Manual, F.W. Stephenson, Editor, Wiley, New York, 1985.

*K.C. Smith and A.S. Sedra, "Main Memory" in Encyclopedia of Computer Science and Engineering, Second Edition, Van Nostrand Reinhold, New York, pp. 842-855, 1983.

*A.S. Sedra and K.C. Smith, Solutions Manual for Microelectronic Circuits, Holt, Rinehart and Winston, New York, 170 pages, October1982. Second Edition, Jan. 1987

*A.S. Sedra, Ed., "Experiments in Electronic Circuits I and Experiments in Electronic Circuits II", Hickok Teaching Systems Inc., Woburn, Mass., 1978.

*A.S. Sedra, "Fully Integrated Analog Filters", Foreword to Session VIII at the1978 Int. Solid State Circuits Conference, Digest, p. 78, Feb. 1978.

*A.S. Sedra and K.C. Smith, "A Simple Digitally-Controlled Variable-Gain Linear DC Amplifier", Electronic Engineering, vol. 41, pp. 362-365, March 1969.

*K.C. Smith and A.S. Sedra, "A Simple Wide-Band Linear Voltage-to-Frequency Converter", Electronic Engineering, vol. 40, pp.140-143, March 1968.

** For papers reprinted in books, see (1) above.**Patents***"Digitally Controlled Variable Gain Linear DC Amplifier", U.S. Patent No. 3, 629, 720, Issued: Dec. 1971.

*"A Three-Port Electrical Network", U.S. Patent No. 3, 619, 798, Issued: Nov. 1971; Canadian Patent No. 908, 273, Issued: Aug. 1972.

*" A Current Conveyor with Virtual Reference Input Potential", Canadian Patent No. 852, 343, Issued: Sept. 1970; U.S. Patent No. 3, 582, 589, Issued: June 1971.

** All three patents are held jointly with K.C. Smith.**Other Invited Presentations (Last six years)***"Issues in Teaching Analog Circuit Design", at the 1992 Forum on Issues in Analog Circuit Design for the 90's, IEEE Symposium on Circuits and Systems, San Diego, Calif., May 1992.

*"Current-Mode Circuits", at the 1991 European Conference on Circuit Theory and Design, Copenhagen, Denmark, Sept. 1991.

*"The Current Conveyor: Theory and Practice", at the IEEE Circuits and Systems Society Workshop on Current-Mode Analog Circuits, New Orleans, May 1990.

*"The Current Conveyor - History and Progress", at the Institute for Computing Research, University of Waterloo, March 22, 1989.

*"Switched-Capacitor Filter Synthesis for VLSI", Meeting of the Toronto Section of the IEEE, March 4, 1987.

*"Switched-Capacitor Filter Synthesis for VLSI", Colloquium presentation at the Department of Electrical Engineering, Moore School of Electrical Engineering, University of Pennsylvania, Philadelphia, PA, April 9, 1987.

*Two of the Lansdowne lectures at the University of Victoria, Victoria, B.C.: "Synthesis of Switched-Capacitor Filters for VLSI", on March 26, 1986; and "Complex Analog Filters", on March 27, 1986.

*"Switched-Capacitor Filter Synthesis for VLSI", Colloquium of the Dept. of Electrical Engineering, University of Minnesota, Minneapolis, Minn., Jan. 21, 1985.

*"Switched-Capacitor Filter Synthesis", Lecture presented at the Advanced Summer Course on MOS-VLSI Circuits for Telecommunications, Sponsored by the European Economic Community, L'Aquila, Italy, June 18-28, 1984. Also presented in revised form at two other editions of this workshop: Puerto Santa Maria, Spain, June 1986 and Tampere, Finland, June 1988.**External links*** [

*http://web.archive.org/web/20040930144811/http://www.eecg.toronto.edu/~adel/ University of Toronto Biography (Internet Archive)*]

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