Effective Filtering of Requantization Error in Dual Quantized CTDSM using FIR DAC. - Ankesh Jain; Ahmed Abdelaal; Maurits Ortmanns (ISCAS, 2019)

A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators. - Ahmed Abdelaal; John G. Kauffman; Mohamed A. Mokhtar; Maurits Ortmanns (ISCAS, 2020)

FIR DACs in CT Incremental Delta-Sigma Modulators. - Mohamed A. Mokhtar; Patrick Vogelmann; Ahmed Abdelaal; John G. Kauffman; Maurits Ortmanns (ISCAS, 2020)

A 0.9-V Calibration-Free 97dB-SFDR 2-MS/s Continuous Time Incremental Delta-Sigma ADC Utilizing Variable Bit Width Quantizer in 28nm CMOS. - Mohamed A. Mokhtar; Ahmed Abdelaal; Markus Sporer; Joachim Becker; John G. Kauffman; Maurits Ortmanns (CICC, 2021)

FIR Filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators. - Ahmed Abdelaal; Michael Pietzko; Mohamed A. Mokhtar; John G. Kauffman; Maurits Ortmanns (ISCAS, 2021)

Influence of Excess Loop Delay on the STF of Continuous-Time Delta-Sigma Modulators. - Michael Pietzko; Johannes Wagner 003; Ahmed Abdelaal; John G. Kauffman; Maurits Ortmanns (ISCAS, 2021)

A 0.9-V DAC-Calibration-Free Continuous-Time Incremental Delta-Sigma Modulator Achieving 97-dB SFDR at 2 MS/s in 28-nm CMOS. - Mohamed A. Mokhtar; Ahmed Abdelaal; Markus Sporer; Joachim Becker; John G. Kauffman; Maurits Ortmanns (IEEE J. Solid State Circuits, 2022)

A Chopped 6-bit 1.6 GS/s SAR ADC Utilizing Slow Decision Information in 22 nm FDSOI. - Jonathan Ungethüm; Michael Pietzko; Ahmed Abdelaal; John G. Kauffman; Maurits Ortmanns (ESSCIRC, 2023)

Using Negative-R Assisted Integrators in Wide-band Delta-Sigma Modulators. - Ahmed Abdelaal; Michael Pietzko; Jonathan Ungethüm; John G. Kauffman; Maurits Ortmanns (ISCAS, 2024)

A 600MS/s 10-bit SAR ADC with unit via-based delta-length C-DAC in 22nm FDSOI. - Michael Pietzko; Jonathan Ungethüm; Ahmed Abdelaal; John G. Kauffman; Maurits Ortmanns (ISCAS, 2024)

A Calibration-free 80MHz CT DSM Using Dual Quantization and ISI Shuffler Achieving 106.2dB SFDR. - Ahmed Abdelaal; John G. Kauffman; Joachim Becker; Matteo Dalla Longa; Francesco Conzatti; Maurits Ortmanns (CICC, 2025)

A Direct Digitizing, 1MHz Bandwidth, 28fA/√Hz Current Sensing Front-End Based on a Mixed-Signal Integrator-Differentiator TIA in 28nm CMOS. - David-Peter Wiens; Ahmed Abdelaal; Bjoern Driemeyer; Joachim Becker; John G. Kauffman; Maurits Ortmanns (CICC, 2025)

Analysis of Dynamic Errors in Tri-level DACs for Continuous-Time Delta-Sigma Modulators. - Ahmed Abdelaal; Björn Driemeyer; Joschua Conrad; John G. Kauffman; Maurits Ortmanns (ISCAS, 2025)

PSumSim: A Simulator for Partial-Sum Quantization in Analog Matrix-Vector Multipliers. - Joschua Conrad; Simon Wilhelmstätter; Holger Mandry; Paul Kässer; Ahmed Abdelaal; Rohan Asthana; Vasileios Belagiannis; Maurits Ortmanns (ISCAS, 2025)

ΔΣ Modulators Employing MASH DSM DAC-Based Dual Quantization. - Ahmed Abdelaal; Michael Pietzko; John G. Kauffman; Ankesh Jain; Maurits Ortmanns (IEEE Trans. Circuits Syst. I Regul. Pap., 2025)