Prof. Dr. Ali Zeki

Prof. Dr. Ali Zeki
Engineering Faculty, Electrical & Electronics Engineering Department
Email address:
alizeki©gau.edu.tr
Phone:
(90 392) 650 2000 - ext : 1328
Fax:
(90 392) 650 2062
Office:
Techno Park 2ndFloor
Research Interests:
Analog Integrated Circuit Design
Low-voltage Analog IC Design
Integrated Tunable Filters
Design of Micro-Systems
Semiconductor Device Modeling
Background:
Ali Zeki was born in Cyprus, in 1968. He received the B.Sc., M.Sc. and Ph.D. degrees in Electronics & Communication
Engineering from Istanbul Technical University (ITU) in 1990, 1993 and 1998, respectively. During 1995–1996 he
attended the “Microcomputers” training in Japan, with the JICA scholarship. He served as a research assistant (1991–
1998), as an assistant professor (1998–2001), as an associate professor (2001–2006) and as a full professor (20062010) at ITU Electronics and Communication Engineering Department. He also served as the academic coordinator at
ITU-ETA ASIC Design Center, Istanbul (2000–2004). He is currently a full professor at Girne American University, Faculty
of Engineering, Electrical & Electronics Engineering Department.
Publications:
E. O. Güneş, A. Zeki, A. Toker, "Design of a high performance mutually coupled circuit", Analog Integrated Circuits and
Signal Processing, vol.66, no.1, pp.81-91, 2011.
I. Myderrizi, A. Zeki, "Current-steering digital-to-analog converters: Functional specifications, design basics and
behavioral modeling”, IEEE Antennas and Propagation Magazine, vol.52, no.4, pp.197-208, 2010.
I. Myderrizi, A. Zeki, "A 12-bit 0.35um CMOS area optimized current-steering hybrid DAC", Analog Integrated Circuits and
Signal Processing, vol.65, no.1, pp.67-75, 2010.
V. Tavas, Ş. Demirkol, S. Özoğuz, A. Zeki, A. Toker, "An ADC based random bit generator based on a double scroll chaotic
circuit", J. Circuits, Systems & Computers, vol.9, no.7, pp.1621-1639, 2010.
V. Tavas, Ş. Demirkol, S. Özoğuz, A. Zeki, A. Toker, "An integrated cross-coupled chaos oscillator applied to random
number generation", IET Circuits, Devices & Systems, vol.3, no.1, pp.1-11, 2009.
A. Zeki, A. Toker, "Tunable linear CMOS current mirror", Analog Integrated Circuits and Signal Processing, vol.50, no.3,
pp.261-269, 2007.
A. Toker, A. Zeki, "Tunable active network synthesis using ICCIIs", International Journal of Electronics, vol.94, no.4,
pp.335-351, 2007.
A. Zeki, A. Toker, "DXCCII-based tunable gyrator", International Journal of Electronics and Communications (AEÜ), vol.34,
no.1, pp.59-62 , 2005.
A. Zeki, A. Toker, "The dual-X current conveyor (DXCCII): A new active device for tunable continuous-time
filters", International Journal of Electronics, vol.89, no.12, pp.913-923, Dec 2002.
A. Toker, A. Zeki, O. Çiçekoğlu, "Generalized gyrator implementation techniques using unity-gain cells",International
Journal of Electronics, vol.88, no.5, pp.517-528, May 2001.
A. Zeki, A. Toker, S. Özoğuz, "Linearly tunable transconductor using modified CDBA", Analog Integrated Circuits and
Signal Processing, vol.26, no.2, pp.179-183, Feb.2001.
A. Zeki, "Low-voltage CMOS triode transconductor with wide-range and linear tunability", Electronics Letters, 35, pp.16851686, 1999.
A. Zeki, H. Kuntman, "High-output-impedance CMOS dual-output OTA suitable for wide-range continuous-time filtering
applications", Electronics Letters, 35, pp.1295-1296, 1999.
H. Kuntman, A. Zeki, "Novel approach to the calculation of non-linear harmonic distortion coefficients in CMOS
amplifiers", Microelectronics Journal, 29, pp.43-48, 1998.
A. Zeki, H. Kuntman, "Accurate active-feedback CMOS cascode current mirror with improved output swing",International
Journal of Electronics, 84, pp.335-343, 1998.
A. Zeki, H. Kuntman, "Accurate and high output impedance current mirror suitable for CMOS current output
stages", Electronics Letters, 33, pp.1042-1043, 1997.
A. Zeki, H. Kuntman, "A new MOSFET model suitable for analogue IC analysis", International Journal of Electronics, 78,
pp.247-260, 1995.
V. Tavas, A. Ş. Demirkol, S. Özoğuz, S. Kılınç, A. Toker, A. Zeki, "An IC Random Number Generator Based on
Chaos", Applied Electronics - International Conference, Pilsen, Czech Republic, pp.347-350, September 2010.
I. Myderrizi, A. Zeki, "A high-speed swing reduced driver suitable for digital-to-analog converters", ECCTD 2009, European
Conference on Circuit Theory and Design, Antalya, Turkey, pp.635-638, August 2009.
I. Myderrizi, A. Zeki, "Behavioral model of segmented current-steering DAC by using SIMULINK", IEEE PRIME 2009, The
5th International Conference on PhD Research in Microelectronics & Electronics, Cork, Ireland, pp.156-159, July 2009.
I. Myderrizi, A. Zeki, "A high output impedance CMOS current source suitable for current-steering DACs",Applied
Electronics - International Conference, Pilsen, Czech Republic, pp.131-134, September 2008.
U. Güvenç, A. Zeki, "A new tunable linear current mirror", IEEE PRIME 2008, The 4th International Conference on PhD
Research in Microelectronics, Istanbul, Turkey, pp.49-51, June 2008.
A. Zeki, A. Ü. Keskin, A. Toker, "DXCCII-based four-quadrant analog multipliers using triode MOSFETs",ELECO 2005,The
4th International Conference on Electrical and Electronics Engineering, Bursa, Turkey, pp.41-45, December 2005.
B. Çatlı, F. Bayam, B. T. Çavuş, A. Kepkep, A. Zeki, "A 7-bit 4GSa/s two-way time-interleaved bipolar track-and-hold
amplifier", IEEE PRIME 2005 (International Conference on PhD Research in Microelectronics & Electronics), Lausanne,
Switzerland, vol.1, pp.37-39, July 2005.
I. Myderrizi, A. Zeki, "BiCMOS current-mode integrators suitable for low-voltage continuous-time filters",International
Symposium on Signals, Circuits & Systems (SCS 2003), Iasi, Romanya, vol.2, pp.473-476, July 2003.
T. Kaya, A. Zeki, "A modified active current mirror suitable for current-mode algorithmic analog-to-digital converters", 9th
IEEE International Conference on Electronics, Circuits and Systems (ICECS 2002), Dubrovnik, Croatia, vol.1, pp.257-260
, September 2002.
S. Özoğuz, N. Tarım, A. Zeki, "Realization of high-Q bandpass filters using CCCIIs", 44th Midwest Symposium on Circuits
and Systems, Dayton, Ohio, USA, vol.1, pp.134-137, August 2001.
A. Zeki, H. Kuntman, "High-linearity low-voltage self-cascode class AB CMOS current output stage",International
Symposium on Circuits And Systems (ISCAS 2000), Geneva, Switzerland, vol.IV, pp.257-260, May 2000.
A. Zeki, H. Kuntman, "A CMOS CCII suitable for continuous-time active networks", International Symposium on Signals,
Circuits & Systems (SCS'97), Iasi, Romania, pp.493-498, 1997.
A. Zeki, H. Kuntman, "A novel CMOS OTA structure suitable for OTA-C filters", International Conference on
Microelectronics (ICM'96), Cairo, Egypt, pp.7-10, 1996.