Research Explorer

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Researcher

Johan Raman

Awards & Distinctions

34 Results

2024

A 3.5 GS/s 1-1 MASH VCO ADC with second-order noise shaping

Brendan SauxJonas BorgmansJohan RamanPieter Rombouts

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS

Origin of frequency-dependent distortion and calibration for ring oscillator VCO ADCs

Brendan SauxJonas BorgmansJohan RamanPieter Rombouts

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS

2023

Techniques for low-noise high-bandwidth hall sensor readout : inherent anti-aliasing and randomized spinning

Robbe RiemPieter RomboutsJohan Raman

2022

A 2 MS/s full bandwidth hall system with low offset enabled by randomized spinning

Robbe RiemJohan RamanPieter Rombouts

A1 Journal Article in SENSORS

A fast offset reduction loop based on a bilinear integrator for sensor readout circuits

Robbe RiemJohan RamanPieter Rombouts

First-order hold DAC reconstruction filtering for efficient image rejection

Robbe RiemTobias CromheeckeJohan RamanPieter Rombouts

2021

A low-noise instrumentation amplifier with built-in anti-aliasing for hall sensors

Robbe RiemJohan RamanJonas BorgmansPieter Rombouts

A1 Journal Article in IEEE SENSORS JOURNAL

2019

A current-mode floating-bridge technique for closed-loop Sigma Delta readout of Wheatstone bridge sensors

Johan RamanPieter Rombouts

Low-pass filtering SC-DAC for reduced jitter and slewing requirements on CTSDMs

Dries VercaemerJohan RamanPieter Rombouts

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS

2018

Experimental results on PWM linearization of a VCO-ADC with 3rd order noise shaping

Amir BabaiefishaniDries VercaemerJohan RamanPieter Rombouts

2017

Passive loop filter assistance for CTSDMs

Dries VercaemerJohan RamanPieter Rombouts

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS

Passive loop filter assistance for CTSDMs

Dries VercaemerJohan RamanPieter Rombouts

2015

A combined hall and stress sensor for highly accurate magnetic field sensing free from the Piezo-Hall effect

Samuel HuberJohan RamanAppo van der WielChristian SchottPieter RomboutsOliver Paul

2013

A virtually floating dual-mass accelerometer

Maarten De BockPierre WoestynJohan RamanPatrick De BaetsPieter Rombouts

A1 Journal Article in SENSORS AND ACTUATORS A-PHYSICAL

Method for electric field and potential calculations in Hall plates

Johan RamanPieter RomboutsLudo Weyten

A1 Journal Article in ELECTRONICS LETTERS

2012

A very compact 1MS/s Nyquist-rate A/D-converter with 12 effective bits

Pieter RomboutsPierre WoestynMaarten De BockJohan Raman

2010

A constraint in single-feedback Sigma Delta force-feedback loops with a discrete-time loop filter

Pieter RomboutsJohan RamanLudo Weyten

A dual-mass capacitive-readout accelerometer operated near pull-in

Pierre WoestynJohan RamanPieter RomboutsLudo WeytenPatrick De Baets

Folded-cascode amplifier with efficient feedforward gain-boosting

Johan RamanPieter RomboutsLudo Weyten

A1 Journal Article in ELECTRONICS LETTERS

Simple quadrature oscillator for BIST

Johan RamanPieter RomboutsLudo Weyten

A1 Journal Article in ELECTRONICS LETTERS

2009

A closed-loop digitally controlled MEMS gyroscope with unconstrained Sigma-Delta force-feedback

Johan RamanEdmon CretuPieter RomboutsLudo Weyten

A1 Journal Article in IEEE SENSORS JOURNAL

2008

An on-line calibration technique for mismatch errors in high-speed DACs

Benoit CatteauPieter RomboutsJohan RamanLudo Weyten

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS

An unconstrained architecture for systematic design of higher order Sigma Delta force-feedback loops

Johan RamanPieter RomboutsLudo Weyten

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS

2007

An Unconstrained Architecture for High-Order Sigma-Delta Force-Feedback Inertial Sensors

Johan RamanPieter RomboutsLudo Weyten

2006

A digitally controlled MEMS gyroscope with unconstrained sigma-delta force-feedback architecture

Johan RamanE CretuPieter RomboutsLudo Weyten

2005

Controlled behaviour of STF in CT Sigma Delta modulators

Jeroen De MaeyerJohan RamanPieter RomboutsLudo Weyten

A1 Journal Article in ELECTRONICS LETTERS

STF Behaviour in a CT $Sigma Delta$ Modulator

Jeroen De MaeyerJohan RamanPieter RomboutsLudo Weyten

2004

Systematic design of double-sampling $Sigma Delta$ ADC`s converters with modified NTF

Pieter RomboutsJeroen De MaeyerJohan RamanLudo Weyten

Systematic design of double-sampling Sigma Delta ADC'S with modified NTF

R ROMBOUTSJeroen De MaeyerJohan RamanLudo Weyten

2003

An approach to tackle quantization noise folding in double-sampling Sigma Delta modulation A/D converters

Pieter RomboutsJohan RamanLudo Weyten

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING

2002

An efficient technique to eliminate quantisation noise folding in double-sampling ΣΔ modulators

Pieter RomboutsJohan RamanLudo Weyten

2001

Composite functions in an orthogonal polynomial base.

Johan RamanLudo Weyten

A1 Journal Article in SIGNAL PROCESSING

1998

Capacitor mismatch compensation for the quasi-passive switched-capacitor DAC

Pieter RomboutsLudo WeytenJohan RamanS Audenaert

A1 Journal Article in IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS

1995

An Improved Addressing Scheme for AMLCD's

S AUDENAERTJohan RamanLudo Weyten