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omar.ismail(at)uni-ulm.de
M.Sc. Omar Ismail
Omar Ismail received his B.Sc degree in Electronics Engineering from the German University in Cairo (GUC), Egypt, 2019. Afterwards, he graduated from the "Communications Technology" master program in 2021 at Ulm University, Germany, where he completed his master project on Dual-Quantization Sigma-Delta ADCs at the Institute of Microelectronics. Since November 2021, he is working there towards his PhD in the field of high-resolution Incremental Sigma-Delta A/D converters under the supervision of Prof. Dr.-Ing. Maurits Ortmanns.
Projekte
High-Resolution, Efficient Incremental Sigma-Delta Modulators
M. Mokhtar, O. Ismail: 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]
Studentische Arbeiten
[mt] = Masterarbeit, [rp] = Bachelorarbeit
Aktuelle Arbeiten
Abgeschlossene Arbeiten
- Christian Rudorf
High Resolution Linear-Exponential Incremental Sigma-Delta ADC [mt]
Publikationen
2024
5.
Kässer,
P.;
Wagner,
J.;
Ismail,
O.;
Ortmanns,
M.
Inner Transfer Functions in Incremental ΔΣ ADCs
IEEE Transactions on Circuits and Systems II: Express Briefs
April 2024
Inner Transfer Functions in Incremental ΔΣ ADCs
IEEE Transactions on Circuits and Systems II: Express Briefs
April 2024
| DOI: | 10.1109/TCSII.2024.3390397 |
2023
4.
Kässer,
P.;
Wagner,
J.;
Ismail,
O.;
Driemeyer,
B.;
Ortmanns,
M.
Quantizer Gain in Incremental Delta-Sigma ADCs
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, pp. 1-4
Dezember 2023
Quantizer Gain in Incremental Delta-Sigma ADCs
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, pp. 1-4
Dezember 2023
| DOI: | 10.1109/ICECS58634.2023.10382904 |
3.
Kässer,
P.;
Ismail,
O.;
Wagner,
J.;
Fischer,
R.;
Ortmanns,
M.
Frequency-Domain Analysis of Reconfigured Incremental ΔΣ ADCs on the Example of the Exponential Phase
IEEE Transactions on Circuits and Systems I: Regular Papers
September 2023
Frequency-Domain Analysis of Reconfigured Incremental ΔΣ ADCs on the Example of the Exponential Phase
IEEE Transactions on Circuits and Systems I: Regular Papers
September 2023
| DOI: | 10.1109/TCSI.2023.3310655 |
2.
Mokhtar,
M. A.;
Ismail,
O.;
Vogelmann,
P.;
Kauffman,
J. G.;
Ortmanns,
M.
A 40 kS/sCalibration-Free Incremental △Σ ADC Achieving 104 dB DR and 105.7 dB SFDR
ESSCIRC 2023- IEEE 49th European Solid State Circuits Conference (ESSCIRC), Lisbon, Portugal, pp. 401-404
September 2023
A 40 kS/sCalibration-Free Incremental △Σ ADC Achieving 104 dB DR and 105.7 dB SFDR
ESSCIRC 2023- IEEE 49th European Solid State Circuits Conference (ESSCIRC), Lisbon, Portugal, pp. 401-404
September 2023
| DOI: | 10.1109/ESSCIRC59616.2023.10268735 |
1.
Kässer,
P.;
Ismail,
O.;
Rudorf,
C.;
Wagner,
J.;
Ortmanns,
M.
Linear-Exponential I-DS ADCs: Analysis, Limitations and Higher Order
IEEE International Symposium on Circuits and Systems (ISCAS), Monterey, CA, USA, pp. 1-5
Mai 2023
Linear-Exponential I-DS ADCs: Analysis, Limitations and Higher Order
IEEE International Symposium on Circuits and Systems (ISCAS), Monterey, CA, USA, pp. 1-5
Mai 2023
| DOI: | 10.1109/ISCAS46773.2023.10182215 |
Wissenschaftl. Mitarbeiter
