Publications
Chosen filters:
Chosen filters:
Qualification and Quantification of the Nonlinear Distortions in Discrete-Time Sigma-Delta ADCs Vrije Universiteit Brussel
Sigma-delta modulators are becoming increasingly popular in electronic circuits, pushing these circuits to higher sampling frequencies, higher bandwidths, complex feedback/feedforward structures and even complex-valued loop filters. The top-down refinement during a sigma-delta modulator design gradually introduces and verifies circuit non-idealities such as the finite gain-bandwidth or the finite slew-rate of the amplifiers. However, a bottom-up ...
The mismatch performance of pseudo digital ring oscillators used in VCO ADCs : PSRR and CMRR Ghent University
Noise optimization of a resistively-driven ring oscillator for VCO-based ADCs Ghent University
Recently a study of the analog behavior of ring oscillators was presented from the perspective of VCO ADC design [1]. In this study it was shown that the electrical behavior between the two tuning terminals of such a ring oscillator can be modeled by a diode element. The VCO (phase-)noise can be modeled as an equivalent input-referred noise voltage source in series with this diode. Unfortunately, it was found that this input-referred noise was ...
A low-power reduced kick-back comparator with improved calibration for high-speed flash ADCs Ghent University
Digital Enhancement of SAR ADCs KU Leuven
Digital data processing has become deeply integrated in our lives. We see the prefix 'smart' attached to an increasingly varied set of devices, from phones and TV's to cars, homes and even washing machines. These devices are full of sensors that allow them to interact with the real, analog world. Analog-to-Digital Converters (ADCs) are one of the fundamental blocks that allow digital devices to process analog information. As modern applications ...
Architecture optimization for energy-efficient resolution-scalable 8-12-bit SAR ADCs KU Leuven
© 2018, Springer Science+Business Media, LLC, part of Springer Nature. Low power analog-to-digital converters (ADCs) in energy constrained devices, such as wireless sensor readout modules, often target dynamic resolution scalability with application context to reduce the average power consumption. This work implements such an 8–12-bit resolution scalable ADC, using an oversampling and noise-shaping successive approximating register (SAR) ...
High-performance, power-efficient ADCS based on ring amplification Vrije Universiteit Brussel
The ever-increasing demand for higher data throughput has fueled the development of analog-to-digital converters (ADCs) that seek to maximize both linearity and bandwidth. Typical applications that benefit from such ADCs include software-defined radios, cellular base stations, satellite and radar receivers, cable TV set-top units, and instrumentation equipment, in which the adoption of wide-bandwidth, high-speed ADCs provides benefits in terms ...