A 1.6ps peak-INL 5.3ns range two-step digital-to-time converter in 65nm CMOS. - Ahmed Elmallah; Mostafa Gamal Ahmed; Ahmed Elkholy; Woo-Seok Choi; Pavan Kumar Hanumolu (CICC, 2018)

A 5GHz 370fsrms 6.5mW clock multiplier using a crystal-oscillator frequency quadrupler in 65nm CMOS. - Karim M. Megawer; Ahmed Elkholy; Daniel Coombs; Mostafa Gamal Ahmed; Ahmed Elmallah; Pavan Kumar Hanumolu (ISSCC, 2018)

A 34Gbaud Linear Transimpedance Amplifier with Automatic Gain Control for 200Gb/s DP-16QAM Optical Coherent Receivers. - Mostafa Gamal Ahmed; Tam N. Huynh; Christopher Williams 003; Yong Wang 026; Rahul Shringarpure; Reza Yousefi; Jose Roman; Noam Ophir; Alexander V. Rylyakov (OFC, 2018)

A Silicon Photonic Transceiver and Hybrid Tunable Laser for 64 Gbaud Coherent Communication. - Ari Novack; Matthew Streshinsky; Tam N. Huynh; Tal Galfsky; Hang Guan; Yang Liu 178; Yangjin Ma; Ruizhi Shi; Alexandre Horth; Yaojia Chen; Amir Hanjani; Jose Roman; et al. (OFC, 2018)

A 12-Gb/s -16.8-dBm OMA Sensitivity 23-mW Optical Receiver in 65-nm CMOS. - Mostafa Gamal Ahmed; Mrunmay Talegaonkar; Ahmed Elkholy; Guanghua Shu; Ahmed Elmallah; Alexander V. Rylyakov; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2018)

A 6.75-8.25-GHz -250-dB FoM Rapid ON/OFF Fractional-N Injection-Locked Clock Multiplier. - Ahmed Elkholy; Ahmed Elmallah; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2018)

A 5GHz 245fsrms 8mW Ring Oscillator-based Digital Frequency Synthesizer. - Amr Khashaba; Ahmed Elkholy; Karim M. Megawer; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (CICC, 2019)

A 54MHz Crystal Oscillator With 30× 18.5 Start-Up Time Reduction Using 2-Step Injection in 65nm CMOS. - Karim M. Megawer; Nilanjan Pal; Ahmed Elkholy; Mostafa Gamal Ahmed; Amr Khashaba; Danielle Griffith; Pavan Kumar Hanumolu (ISSCC, 2019)

An All-Silicon Transmitter with Co-Designed Modulator and DC-Coupled Driver. - Yangjin Ma; Christopher Williams 003; Mostafa Gamal Ahmed; Abdellatif Elmoznine; Daihyun Lim; Yang Liu 178; Ruizhi Shi; Tam N. Huynh; Jose Roman; Abdelrahman H. Ahmed; Leonardo Vera; Yaojia Chen; et al. (OFC, 2019)

34-GBd Linear Transimpedance Amplifier for 200-Gb/s DP-16-QAM Optical Coherent Receivers. - Mostafa Gamal Ahmed; Tam N. Huynh; Christopher Williams 003; Yong Wang 026; Pavan Kumar Hanumolu; Alexander V. Rylyakov (IEEE J. Solid State Circuits, 2019)

Design of Crystal-Oscillator Frequency Quadrupler for Low-Jitter Clock Multipliers. - Karim M. Megawer; Ahmed Elkholy; Mostafa Gamal Ahmed; Ahmed Elmallah; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2019)

A Fast Startup CMOS Crystal Oscillator Using Two-Step Injection. - Karim M. Megawer; Nilanjan Pal; Ahmed Elkholy; Mostafa Gamal Ahmed; Amr Khashaba; Danielle Griffith; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2019)

A 6 $ mu$ W ±50 ppm/°C ±1500 ppm/V 1.5 MHz $RC$ Oscillator Using Self-Regulation. - Tianyu Wang 006; Danielle Griffith; Mostafa Gamal Ahmed; Junheng Zhu; Da Wei; Ahmed Elkholy; Ahmed Elmallah; Pavan Kumar Hanumolu (IEEE Trans. Circuits Syst. II Express Briefs, 2019)

3.5 A 34µW 32MHz RC Oscillator with ±530ppm Inaccuracy from -40°C to 85°C and 80ppm/V Supply Sensitivity Enabled by Pulse-Density Modulated Resistors. - Amr Khashaba; Junheng Zhu; Mostafa Gamal Ahmed; Nilanjan Pal; Pavan Kumar Hanumolu (ISSCC, 2020)

3.2 A 0.0088mm2 Resistor-Based Temperature Sensor Achieving 92fJ·K2 FoM in 65nm CMOS. - Amr Khashaba; Junheng Zhu; Ahmed Elmallah; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (ISSCC, 2020)

A Low-Noise Frequency Synthesizer Using Multiphase Generation and Combining Techniques. - Amr Khashaba; Ahmed Elkholy; Karim M. Megawer; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2020)

A 12-Gb/s 10-ns Turn-On Time Rapid ON/OFF Baud-Rate DFE Receiver in 65-nm CMOS. - Dongwook Kim; Mostafa Gamal Ahmed; Woo-Seok Choi; Ahmed Elkholy; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2020)

A 16-Gb/s -11.6-dBm OMA Sensitivity 0.7-pJ/bit Optical Receiver in 65-nm CMOS Enabled by Duobinary Sampling. - Mostafa Gamal Ahmed; Dongwook Kim; Romesh Kumar Nandwana; Ahmed Elkholy; Kadaba R. Lakshmikumar; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2021)

Receivers for energy efficient optical interconnects - Mostafa Gamal Ahmed (2021)

A 20µs turn-on time, 24kHz resolution, 1.5-100MHz digitally programmable temperature-compensated clock generator with 7.5ppm/°C inaccuracy. - Yongxin Li; Nilanjan Pal; Tianyu Wang 006; Mostafa Gamal Ahmed; Ahmed E. AbdelRahman; Mohamed Badr Younis; Ruhao Xia; Kyu-Sang Park; Pavan Kumar Hanumolu (CICC, 2022)

A 32-MHz, 34-μW Temperature-Compensated RC Oscillator Using Pulse Density Modulated Resistors. - Amr Khashaba; Junheng Zhu; Nilanjan Pal; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2022)

Compute SNR-boosted 22 nm MRAM-based In-memory Computing Macro using Statistical Error Compensation. - Saion K. Roy; Han-Mo Ou; Mostafa Gamal Ahmed; Peter Deaville; Bonan Zhang; Naveen Verma; Pavan Kumar Hanumolu; Naresh R. Shanbhag (ESSCIRC, 2023)

A Carrier-Phase-Recovery Loop for a 3.2pJ/b 24Gb/s QPSK Coherent Optical Receiver. - Ahmed E. AbdelRahman; Mostafa Gamal Ahmed; Mahmoud A. Khalil; Mohamed Badr Younis; Kyu-Sang Park; Pavan Kumar Hanumolu (ISSCC, 2023)

A 5.2 Gb/s 3 mm Air-Gap 4.7 pJ/bit Capacitively-Coupled Transceiver for Giant Video Walls Enabled by a Dual-Edge Tracking Clock and Data Recovery Loop. - Mohamed Badr Younis; Mostafa Gamal Ahmed; Tianyu Wang 006; Ahmed E. AbdelRahman; Mahmoud A. Khalil; Anup P. Jose; Pavan Kumar Hanumolu (VLSI Technology and Circuits, 2023)

A 20-μs Turn-On Time, 24-kHz Resolution, 1.5-100-MHz Digitally Programmable Temperature-Compensated Clock Generator. - Yongxin Li; Nilanjan Pal; Tianyu Wang 006; Mostafa Gamal Ahmed; Ahmed E. AbdelRahman; Mohamed Badr Younis; Kyu-Sang Park; Ruhao Xia; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2023)

Compute SNDR-Boosted 22-nm MRAM-Based In-Memory Computing Macro Using Statistical Error Compensation. - Saion K. Roy; Han-Mo Ou; Mostafa Gamal Ahmed; Peter Deaville; Bonan Zhang; Naveen Verma; Pavan Kumar Hanumolu; Naresh R. Shanbhag (IEEE J. Solid State Circuits, 2025)