M.Sc. Mohamed Aly Mokhtar
Mohamed Aly Mokhtar studied communication technology and electronics from University of Ain-Shams in Cairo, Egypt. He received his B.Sc. degree in 2012. In 2014, he moved to Ulm, Germany to pursue his master degree, where electronics subjects were his main interest. He received his M.Sc. degree in 2017. The topic of his Master thesis was "Design and Implementation of a Power Optimized Incremental Sigma-Delta Modulators".
During his master studies, he did an internship in Fraunhofer IIS in Erlangen, Germany, where he fully designed a Sigma-Delta modulator for resistive sensor applications.
Since October 2017, he is working towards his Ph.D. degree under the supervision of Professor Dr.-Ing. Maurits Ortmanns. His research interest is in the field of power-optimized high-resolution incremental Sigma-Delta analog-to-digital converters.
Projects
High-Resolution, Efficient Incremental Sigma-Delta Modulators
M. Mokhtar: Sigma-Delta (ΣΔ) ADCs are suitable for various applications, due to its oversampling and noise-shaping behavior, thus high resolutions can be achieved independent on the matching accuracy of the analog components. For multiplexed applications, where an ADC is used to digitize the input coming from multi-channels ... [more]
Students theses
[mt] =Master theses [rp] = Bachelor theses
Past theses
- Michael Pietzko
Highly Linear Gm C based Sigma Delta Modulator [mt] - Roman Dorsch
Analysis of CT Incremental Sigma-Delta ADCs with low Oversampling Ratios [mt] - Martin Merkle
Analysis of Sigma-Delta Modulators based on Single Opamp Resonators [mt]
- Mohamed Atef Hassan
Optimization of a Continuous-Time Incremental ΣΔ ADC [mt]
Publications
2021
7.
Abdelaal,
A.;
Pietzko,
M.;
Mokhtar,
M.;
Kauffman,
J. G.;
Ortmanns,
M.
FIR filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online)
May 2021
FIR filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online)
May 2021
2020
6.
Abdelaal,
A.;
Kauffman,
J. G.;
Mokhtar,
M.;
Ortmanns,
M.
A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
5.
Mokhtar,
M.;
Vogelmann,
P.;
Abdelaal,
A.;
Kauffman,
J. G.;
Ortmanns,
M.
FIR DACs in CT Incremental Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
FIR DACs in CT Incremental Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
4.
Conrad,
J.;
Vogelmann,
P.;
Mokhtar,
M.;
Ortmanns,
M.
Design Approach for Ring Amplifiers
IEEE Transactions on Circuits and Systems I: Regular Papers
April 2020
Design Approach for Ring Amplifiers
IEEE Transactions on Circuits and Systems I: Regular Papers
April 2020
| DOI: | 10.1109/TCSI.2020.2986553 |
2019
3.
Mokhtar,
M.;
Vogelmann,
P.;
Haas,
M.;
Ortmanns,
M.
A 94.3 dB SFDR, 91.5 dB DR, 200 kS/s CT Incremental Delta-Sigma Modulator with Differentially Reset FIR Feedback
IEEE Solid-State Circuits Letter, September 2019 - Presented on IEEE European Solid-State Circuits conference (ESSDERC/ESSCIRC), Krakow, Poland
September 2019
A 94.3 dB SFDR, 91.5 dB DR, 200 kS/s CT Incremental Delta-Sigma Modulator with Differentially Reset FIR Feedback
IEEE Solid-State Circuits Letter, September 2019 - Presented on IEEE European Solid-State Circuits conference (ESSDERC/ESSCIRC), Krakow, Poland
September 2019
2.
Mokhtar,
M.;
Vogelmann,
P.;
Wagner,
J.;
Ortmanns,
M.
Incremental Sturdy-MASH Sigma-Delta Modulator with Reduced Sensitivity to DAC Mismatch
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
May 2019
Incremental Sturdy-MASH Sigma-Delta Modulator with Reduced Sensitivity to DAC Mismatch
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
May 2019
2018
1.
Mokhtar,
M.;
Ortmanns,
M.
Study of Single Opamp Resonators in CT Sigma-Delta Modulators
Analogworkshop 2018, Albert-Ludwigs-Universität Freiburg, Germany
March 2018
Study of Single Opamp Resonators in CT Sigma-Delta Modulators
Analogworkshop 2018, Albert-Ludwigs-Universität Freiburg, Germany
March 2018
Research Assistent
