Publications by Adil Koukab | EPFL Graph Search

Related publications (26)

A Reliability and Efficiency Optimization System for Hard-Switching DC/DC Converters

Maher Kayal, Adil Koukab, Giacomo Ripamonti

The Large Hadron Collider experiments at CERN will use power distribution schemes relying on integrated buck DC/DC converters. Due to the radiation-hardness requirements, the devices used for the development of such converters will have a voltage rating wh ...

IEEE2018

Radiation response of 28 nm CMOS transistors at high proton and neutron fluences for high energy physics applications

Jean-Michel Sallese, Adil Koukab

The 28 nm CMOS technology was selected as a promising candidate to upgrade electronics of particle detectors at CERN. Despite the robustness of this node to ultra-high levels of total ionizing dose has been proven, the resilience to 10161MeVneq/cm2 fluence ...

2024

New architecture for the analog front-end of Medipix4

Jean-Michel Sallese, Adil Koukab, Viros Sriskaran

The Medipix4 chip is the latest member of the family of Medipix pixel detector readout chips aimed at high rate spectroscopic X-ray imaging. Unlike its predecessors, it will be possible to tile the chip on all 4 sides permitting seamless large area coverag ...

ELSEVIER2020

Design and optimization of CMOS prescaler

Michel Declercq, Adil Koukab

2005

Computing the Impact of White and Flicker Noise in Continuous-Time Integrator-Based ADCs

Maher Kayal, Adil Koukab, Paul Stanislas Gosselin

From first-order incremental Sigma Delta converters to controlled-oscillator-based converters, many ADC architectures are based on the continuous-time integration of the input signal. However, the accuracy of such converters cannot be properly estimated wi ...

Ieee2016

Reactive Power Imbalances in LC VCOs and their Influence on Phase Noise Mechanisms

Adil Koukab

Phase-noise mechanisms in cross-coupled LC voltage-controlled oscillators (VCOs) are reviewed based on a physical understanding of reactive power imbalances in the tank and in the active part. These phenomena are proven to be the predominant phase-noise de ...

Institute of Electrical and Electronics Engineers2011

Toward direct light-to-digital conversion using a pulse-driven hybrid MOS-PN photodetector

Maher Kayal, Adil Koukab, Denis Sallin

In this Letter, a direct light-to-digital converter based on an MOS-PN photodetector driven by pulsed voltage is presented. The objective is to avoid any analog-to-digital or time-to-digital conversion and, thereby, to pave the way for a new generation of ...

Optical Society of America2015

High-rate, high-resolution single photon X-ray imaging: Medipix4, a large 4-side buttable pixel readout chip with high granularity and spectroscopic capabilities

Jean-Michel Sallese, Adil Koukab, Viros Sriskaran

The Medipix4 chip is the latest member in the Medipix/Timepix family of hybrid pixel detector chips aimed at high -rate spectroscopic X-ray imaging using high -Z materials. It can be tiled on all 4 sides making it ideal for constructing large -area detecto ...

Iop Publishing Ltd2024

Hybrid MOS-PN photodiode with positive feedback for pulse-modulation imaging

Maher Kayal, Adil Koukab, Denis Sallin

A new type of CMOS compatible photodetector, exhibiting intrinsic light-to-time conversion, is proposed. Its main objective is to start the time-to-digital conversion directly at its output, thereby avoiding the cumbersome analog processing. The operation ...

Optical Society of America2014

The Timepix4 analog front-end design: Lessons learnt on fundamental limits to noise and time resolution in highly segmented hybrid pixel detectors

Jean-Michel Sallese, Adil Koukab

This manuscript describes the optimization of the front-end readout electronics for high granularity hybrid pixel detectors. The theoretical study aims at minimizing the noise and jitter. The model presented here is validated with both circuit post layout ...

2023

A Dual-Edge Pulsewidth Modulator for Fast Dynamic Response DC-DC Converters

Maher Kayal, Adil Koukab, Giacomo Ripamonti

Voltage regulator modules are dc-dc converters that power modern microprocessors. They must exhibit a fast dynamic response, in order to achieve satisfactory regulation performance in spite of the rapid load current variations. The pulsewidth modulator is ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Characteristics and ultra-high total ionizing dose response of 22nm fully depleted silicon-on-insulator

Jean-Michel Sallese, Adil Koukab, Gennaro Termo

The radiation response of MOS transistors in a 22 nm Fully Depleted Silicon -On -Insulator (FDSOI) technology exposed to ultra -high total ionizing dose (TID) was investigated. Custom structures including n- and p -channel devices with different sizes and ...

Iop Publishing Ltd2024

On performance scaling and speed of junctionless transistors

Jean-Michel Sallese, Adil Koukab

A prospective study of the junctionless transistors (JLTs) scaling performances based both on TCAD and analytical evaluations of the intrinsic delay after considering on/off voltage constraints is proposed. The tradeoffs between speed and switching power p ...

Pergamon-Elsevier Science Ltd2013

Silicon-on-Insulator Technology for Bioluminescence Imaging and Application to a Switching Photodetector

Maher Kayal, Adil Koukab, Denis Sallin

This paper analyzes some advantages of Silicon-on-Insulator (SOI) based photodetectors for bioluminescence imaging. It shows that SOI based sensors not only solve the bulk carriers problem, it can also act as a very selective spectral filter by acting as a ...

Ieee2015

A GSM-GPRS/UMTS FDD-TDD/WLAN 802.11a-b-g multi-standard carrier generation system

Michel Declercq, Adil Koukab

A compact carrier generation system enabling proper interoperability among quad-band GSM, WCDMA (FDD and TDD), and WLAN (802.11a/b/g) standards is developed. The implementation is achieved in 0.25-mum BiCMOS-SiGe process. The measured tuning range is highe ...

2006

Neutron- and Proton-Induced Degradation of MOS Transistors in 28 nm CMOS Technology (September 2023)

Jean-Michel Sallese, Adil Koukab

The 28 nm CMOS technology was selected as a promising candidate for upgrade of the electronics of particle detectors at CERN. Despite the robustness of this node to ultrahigh levels of total ionizing dose has been proven, the capability to withstand 1016 1 ...

Institute of Electrical and Electronics Engineers Inc.2023

Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop

Michel Declercq, Adil Koukab

A method and apparatus for a fast and automatic setting of the phase locked loop (PLL) output frequency that significantly improves linearity, locking range as well as spectrum purity, jitter and phase noise performances is disclosed. I n one embodiment, a ...

2005

MOS-PN Hybrid Device With Minimum Dark Current for Sensitive Digital Photodetection

Maher Kayal, Adil Koukab, Denis Sallin

This letter presents a CMOS-compatible photodetector displaying direct light-to-time conversion and intrinsic charge integration with a very low dark current. This device is particularly adapted for applications requiring high sensitivity such as biolumine ...

Institute of Electrical and Electronics Engineers2014

A dynamic operation of a PIN photodiode

Maher Kayal, Alexander Tagantsev, Marc Pastre, Adil Koukab, Maxim Gureev, Serguei Okhonin, Denis Sallin, Alexander Kvasov

Traditionally, photodiodes operate at static reverse bias, and incident light intensity is obtained from the relatively week photocurrent. In this paper, we introduce a different concept of photodiode function: the photodiode is used in a dynamic regime wh ...

American Institute of Physics2015

LC-VCO Design With Dual-Gm, Boosted for RF Oscillation and Attenuated for LF Noise

Adil Koukab

A VCO topology with a high gm at RF and low gm at low frequencies (LF) is presented. A high gm(RF) improves start-up conditions, and a low gm(LF) enables a significant improvement of the phase noise and the power supply rejection. The VCO with a modified p ...

2010