Ayman Hassan Abdel Aziz Hassan

Associate Professor at Electronics Engineering and Electrical Communications

Career Information

Assistant Professor at : 2017-03-30
Teacher at : 2010-09-28
Teacher Assistant at : 2002-10-31
Demonstrator at : 1998-11-04

Academic Information

Graduation : 1998 From Faculty of Engineering , Ain Shams University


Ayman H. Ismail (S'02-M'08) received the B.Sc. and M.Sc. degrees both in electrical engineering from Ain Shams University, Cairo, Egypt, in 1998 and 2002, respectively. He received the Ph.D. degree from the University of Waterloo, Waterloo, ON, Canada, in 2007.

From 1998 to 2002, he worked as a research assistant and a teaching assistant at the electronics and communications engineering department of Ain Shams University. In 2001, he joined AIAT VLSI design house as a part-time senior analog mixed-signal design engineer. From 2003 to 2007, he was a research assistant at the VLSI Lab, of the University of Waterloo. During the winter of 2005, he had an internship at Texas Instruments, Dallas, Texas, where he was involved in the design of digital PLLs, and low noise voltage controlled oscillators. From 2007 to 2009, he was an analog IC design engineer with the IP division of Gennum Corporation (Snowbush IP), Toronto, ON, Canada, working on high speed ADCs and PCIe/SATA/USB3SERDES. He has been, also, with Si-ware Systems, where he developed innovative high-performance interface ASICs for inertial sensors that went to mass production. Since 2017, Dr. Ismail is an associate professor at the ECE Dept. of Ain Shams University.

Dr. Ismail has more than 25 IEEE Journal and conference publications, one published book, and 5 US patents. He is, also, the recipient of the overall winning design award and the analog/mixed-signal design award from Mentor Graphics, in 2002. Dr. Ismail research interests include high performance analog-to-digital converters, analog filters, interface circuits for sensors, and sigma-delta techniques, and RF tags.


2004-2003 International Graduate Student Award
2003 University of Waterloo Graduate Scholarship (received 2 times)
2002 Overall Winning Design Prize, 2001-2002 Mentor Graphics Higher Education
Program Student Design Contest
2002 IC / Analog - Mixed Signal Design Prize, 2001-2002 Mentor Graphics Higher
Education Program Student Design Contest
1993-1998 Scholarship for academic distinction, Ain Shams University, Cairo, Egypt


1. A. Ismail and M. Elmasry, “A 6-bit 1.6-GS/s Low Power Wide Bandwidth Flash ADC
Converter in 0.13-µm CMOS Technology,” IEEE J. of Solid State Circuits (JSSC), vol. 43,
no. 9, pp. 1982-1990, Sept. 2008.
2. A. Ismail and M. Elmasry, “Analysis of The Flash ADC Bandwidth-Accuracy Tradeoff in
Deep Submicron CMOS Technologies,” IEEE Trans. Circuits and Syst II (TCAS-II), vol.
55, no. 10, pp. 1001-1005, Oct. 2008.
3. A. Ismail and M. El-Nafarawi, “Energy-efficient successive-approximation-register
based capacitive interface for pressure sensors,” IET Electronics Letters, vol. 51, issue
no. 24, pp. 2007-2009, Nov. 2015.
4. A. Ismail and I. Mostafa, “A Process-Tolerant, Low-Voltage, Inverter-Based OTA for
Continuous-Time Σ-Δ ADC,” IEEE Transactions on Very Large Scale Integration (VLSI)
Systems, vol. 24, issue no. 9, pp. 2911- 2917, Sept. 2016.
5. A. Hassan, K. Sharaf, H. El-Ghitani and H. F. Ragai, ”A New Low Power Transconductor
for GM-C filters,” in Proc. IEEE Int. Symp. Circ. and Syst. (ISCAS), pp. IV 249-252,
Phoenix, Arizona, USA, May 2002.
6. A. Hassan, K. Sharaf, H. El-Ghitani and H. F. Ragai, “Design and Implementation of a
GM-C filter for BLUETOOTH,” in Proc. IEEE Midwest Symp. Circ. and Syst. (MWCAS),
pp. II 629-632 Tulsa, Oklahoma, USA, Aug. 2002.
7. A. H. Ismail and Mohamed I. Elmasry, “Design of MOS Current Mode Logic,” Micronet
Annual Workshop, Toronto, Canada, Sept. 2003.
8. A. H. Ismail and Mohamed I. Elmasry, “A Low Power Design Approach for MOS Current
Mode Logic,” in Proc. IEEE Int. Conf. System-on-Chip (SOCC), pp. 143 - 146, Portland,
OR, USA, Sept, 2003.
9. A. H. Ismail and Mohamed I. Elmasry, “On the Design of Low Power MCML based ring
oscillators,” in Proc. IEEE Canadian Conference on Electrical and Computer
Engineering (CCECE), pp. 2383-2386, Niagara Falls, Ontario, Canada, May 2004.
10. A. H. Ismail and Mohamed I. Elmasry, “Applications of Integer Linear Programming in
the Design of Decimation Filters for Multi-Standard Transceivers,” in Proc. IEEE Int.
Conf. Electrical, Electronics, and Computer Engineering (ICEEC), pp. 690 - 693, Cairo,
Egypt, Sept. 2004.
11. A. H. Ismail and M. Elmasry, “Analog-to-Digital Conversion for SONET OC-192,” in
Proc. IEEE Int. Conf. System-on-Chip (SOCC), pp. 41-44, Santa Clara, CA, USA, Sept.
12. A. H. Ismail and M. Elmasry, “A Termination Technique for The Averaging Network of
Flash ADC’s,” in Proc. IEEE Int. Symp. Circ. and Syst. (ISCAS), pp. 3321-3324, Kos,
Greece, May 2006.
13. A. Elsayed, A. Elshennawy, A. Elmallah, A. Shaban, B. George, M. Elmala, A. Ismail, A.
Wassal, M. Sakr, A. Mokhtar, M. Hafez, A. Hamed, M. Saeed, M. Samir, M. Hammad, M.
Elkhouly, A. Kamal, M. Rabieah, A. Elghufaili, S. Shaibani, I. Hakami, T. Alanazi, “A SelfClocked ASIC Interface for MEMS Gyroscope with 1m°/s/√Hz Noise Floor,” in Proc. IEEE
Custom Integrated Circuits Conf.(CICC), USA, Sept. 2011.
14. A. Ismail, B. George, A. Elmallah, A. Mokhtar, M. Abdelazim , M. Elmala, A. Elshennawy,
A. Omar,M. Saeed, I. Mostafa, A. Elsayed, “A High Performance MEMS Based DigitalOutput Gyroscope,” in Proc. Int. Conf. Solid-State Sensors, Actuators and Microsystems
(Transducers), Barcelona, Spain, June 2013.
15. A. Essawy, A. Ismail, M. Dessouky, “A 0.75V Continuous-Time Sigma Delta Analog-toDigital Converter in CMOS Technology,” in Proc. IEEE Ninth International Caribbean
Conference on DEVICES, CIRCUITS and SYSTEMS (ICCDCS), México, April 2014.
16. A.Essawy, A. Ismail, “A Low Voltage Inverter-Based Continuous-Time Sigma Delta
Analog-to-Digital Converter in 65nm CMOS technology,” in Proc. IEEE 13th
Tension Faible Consommation (FTFC), Monaco, May 2014.
17. A. Omar , A. Elshennawy, A. Ismail, M. Nagib, M. Elmala, A. Elsayed, “A new versatile
hardware platform for closed-loop gyro evaluation,” in Proc. 2015 DGON Inertial Sensors
and Systems (ISS), Karlsruhe, Germany, pp. 1-14, Sept. 2015.
18. I. Mostafa and A. Ismail,“ A Tunable Inverter-Based, Low-Voltage OTA for ContinuousTime ΣΔ ADC,” in Proc. 2015 28th IEEE International System-on-Chip Conference
(SOCC), Beijing, China, pp. 74 – 77, Sept. 2015.
19. A. Ismail, K. Ashraf , A. Metawea , I. Mostfa , A. Saeed , E. Helal , M. Essawy ,M.
Abdelazim , M. Ibrahim , R. Raafat , E. Abdelbary , I. Alaa , M. Nabil ,A. Mansour , B.
Ibrahim , A. Elsayed, “A high-performance self-clocked digital-output quartz gyroscope, ”
in Proc. 2015 IEEE Sensors, Busan, South Korea, pp. 1-4, Nov. 2015.
20. A. Walid and A. Ismail, “A 14-bit low-power interface circuit for piezo-resistive pressure
sensors,” in Proc. IEEE 27th International Conference on Microelectronics (ICM),
Casablanca, Morocco, pp. 166 – 169, Dec. 2015.
21. A. Ismail and M. El-Nafarawi, "A Low-Energy SAR-Based Capacitance-to-Digital
Converter for Pressure Sensors: System Analysis, Design and Calibration," in Proc. of 2016
IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS), Abu
Dhabi, pp.671-674, Oct. 2016.
22. A. H. Ismail, A. Elsayed, “∑-Δ based force-feedback capacitive micro-machined sensors:
Extending the input signal range”, IFIP/IEEE International Conference on Very Large
Scale Integration (VLSI-SoC), Abu Dhabi, UAE, Oct. 2017.
23. A. Omar, A. Elshennawy, M. AbdelAzim, A. H. Ismail, "Analyzing the Impact of Phase
Errors in Quadrature Cancellation Techniques for MEMS Capacitive Gyroscopes", IEEE
Sensors, NewDelhi, India, Oct. 2018.
24. A. Omar, A. Elshennawy, A. H. Ismail, "Analysis and simulation of phase errors in
quadrature cancellation techniques for MEMS capacitive gyroscopes", Inertial Sensors
and Systems (ISS) Symposium Gyro Technology, Germany, Sept 2018.
25. A Safwat, A. Ismail, “A Low-Power Capacitance-to-Voltage Converter For MEMS
Capacitive Sensors”, 31st International Conference on Microelectronics (ICM), pp.154-
157, Cairo, 2019.
26. M Gad, A Elshennawy, A. Ismail, “A Design Method for Force-Feedback Accelerometer
Interface Systems”, 18th IEEE International New Circuits and Systems Conference
(NEWCAS), pp. 5-8, CANADA, 2020.
27. A Safwat, A Ismail, “A General Purpose Single-Slope MEMS Capacitive Sensors Interface
Circuit For IoT Applications” 18th IEEE International New Circuits and Systems
Conference (NEWCAS), pp.1-4, CANADA, 2020.