Jorge R. Fernandes

Susana Cardoso

Moisés Piedade

IEEE Trans. Ind. Electron., August, 2024

Integrated Demodulator for Manchester-Coded AM Signals with Clock Retrieval in US Applications.

[BibT_eX]

[DOI]

Proceedings of the 67th IEEE International Midwest Symposium on Circuits and Systems, 2024

2023

Maximizing Energy Harvesting in a Miniaturized Implant With an Integrated Coil Receiver.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. II Express Briefs, October, 2023

Artificial Neural Networks for GMR-Based Magnetic Cytometry.

[BibT_eX]

[DOI]

Gonçalo N. Tavares

Susana Cardoso

IEEE Trans. Instrum. Meas., 2023

Paving the Way for the Electronic Design Automation of Power Management Units.

[BibT_eX]

[DOI]

Proceedings of the 19th International Conference on Synthesis, 2023

Neural Networks for Defect Detection on Eddy-Currents-Based Non-Destructive Testing.

[BibT_eX]

[DOI]

Proceedings of the 2023 IEEE SENSORS, Vienna, Austria, October 29 - Nov. 1, 2023, 2023

2022

Load Optimized Gate Driving for Charge Pumps.

[BibT_eX]

[DOI]

Carlos Santos

Marcelino B. Santos

Proceedings of the 37th Conference on Design of Circuits and Integrated Systems, 2022

2021

Methods for Fast Characterization of Noise and Offset in Dynamic Comparators.

[BibT_eX]

[DOI]

João Silva

Diogo Brito

Gonçalo Rodrigues

António Couto-Pinto

Proceedings of the 19th IEEE International New Circuits and Systems Conference, 2021

Towards a Wireless System that Can Monitor the Encapsulation of mm-sized Active Implants in vivo for Bioelectronic Medicine.

[BibT_eX]

[DOI]

Proceedings of the 10th International IEEE/EMBS Conference on Neural Engineering, 2021

A Temperature-Compensated 57 PPM/°C 10MHz, 2.4μW Stacked Ring Oscillator.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2021

An On-Chip Clock Generation Circuit for Smart Catheters.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2021

2020

Calibrating Amplifiers Nonlinearity Using Comparator-Based ADCs.

[BibT_eX]

[DOI]

Shaolong Liu

IEEE Trans. Circuits Syst. II Express Briefs, 2020

A Sub-μW 3-10MHz Stacked Oscillator with a Duty-Cycle Calibrated Level Shifter.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2020

2019

High-Resolution Nondestructive Test Probes Based on Magnetoresistive Sensors.

[BibT_eX]

[DOI]

Diogo Miguel Caetano

Moisés Simões Piedade

Paulo P. Freitas

IEEE Trans. Ind. Electron., 2019

A Small-Footprint Quasi-Passive 1<sup>st</sup> Order ΣΔ Modulator.

[BibT_eX]

[DOI]

Gonçalo Rodrigues

Proceedings of the IEEE International Symposium on Circuits and Systems, 2019

Injection Locked Oscillators with Current Reuse.

[BibT_eX]

[DOI]

Mafalda Benido

Proceedings of the IEEE International Symposium on Circuits and Systems, 2019

2018

Analysis and Background Self-Calibration of Comparator Offset in Loop-Unrolled SAR ADCs.

[BibT_eX]

[DOI]

Shaolong Liu

Jeyanandh Paramesh

Lawrence T. Pileggi

IEEE Trans. Circuits Syst. I Regul. Pap., 2018

Radio Pulsar Signal Generator.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

Generic Model for Multi-Phase Ring Oscillators.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

2017

A 5-bit 300-900-MS/s 0.8-1.2-V Supply Voltage ADC With Background Self-Calibration.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. II Express Briefs, 2017

A Flash ADC Tolerant to High Offset Voltage Comparators.

[BibT_eX]

[DOI]

Circuits Syst. Signal Process., 2017

Tunable kΩ to GΩ pseudo-resistor with bootstrapping technique.

[BibT_eX]

[DOI]

Diogo Miguel Caetano

David Oliveira

João Silva

Proceedings of the IEEE 60th International Midwest Symposium on Circuits and Systems, 2017

Live demonstration: A pulsar signal receiver system for navigation.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2017

2016

A SAR ADC With a MOSCAP-DAC.

[BibT_eX]

[DOI]

IEEE J. Solid State Circuits, 2016

A 12-bit SAR ADC with background self-calibration based on a MOSCAP-DAC with dynamic body-biasing.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

An analog integrated systems course proposal for a 2nd cycle of studies of the bologna process.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

2015

An 8-bit 0.35-V 5.04-fJ/Conversion-Step SAR ADC With Background Self-Calibration of Comparator Offset.

[BibT_eX]

[DOI]

IEEE Trans. Very Large Scale Integr. Syst., 2015

Quaternary Logic Lookup Table in Standard CMOS.

[BibT_eX]

[DOI]

Diogo Brito

Paulo F. Flores

José Monteiro

IEEE Trans. Very Large Scale Integr. Syst., 2015

Fully Integrated Energy Harvesting Circuit With -25-dBm Sensitivity Using Transformer Matching.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. II Express Briefs, 2015

A 2.41 GHz ISM receiver using an IQ VCO-mixer.

[BibT_eX]

[DOI]

Jose Ferreira

Proceedings of the IEEE 13th International New Circuits and Systems Conference, 2015

Live demonstration: A CMOS ASIC for precise reading of a Magnetoresistive sensor array for NDT.

[BibT_eX]

[DOI]

Proceedings of the 2015 IEEE International Symposium on Circuits and Systems, 2015

A 9-b 0.4-V charge-mode SAR ADC with 1.6-V input swing and a MOSCAP-only DAC.

[BibT_eX]

[DOI]

Proceedings of the ESSCIRC Conference 2015, 2015

2014

A sub-ranging 2-Step 7-bit self-calibrated comparator-based binary-search ADC.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

Quadrature relaxation oscillator with FoM of -165 dBc/Hz.

[BibT_eX]

[DOI]

Eduardo Ortigueira

Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

Experimental evaluation of wide range injection locking in a CMOS RC oscillator.

[BibT_eX]

[DOI]

Eduardo Ortigueira

Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

An Efficient RF power harvester for low input power with reduced dead-zone.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

2013

Low Noise Amplifiers with Double Loop Feedback.

[BibT_eX]

[DOI]

Koen van Hartingsveldt

Manuel M. Silva

Circuits Syst. Signal Process., 2013

Standard CMOS voltage-mode QLUT using a clock boosting technique.

[BibT_eX]

[DOI]

Proceedings of the IEEE 11th International New Circuits and Systems Conference, 2013

FM-UWB transmitter using RC oscillators.

[BibT_eX]

[DOI]

Leonel Almeida

Proceedings of the IEEE 11th International New Circuits and Systems Conference, 2013

A 5-bit 1.5GSps calibration-less binary search ADC using threshold reconfigurable comparators.

[BibT_eX]

[DOI]

Proceedings of the 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013

A self-calibrated 10-bit 1 MSps SAR ADC with reduced-voltage charge-sharing DAC.

[BibT_eX]

[DOI]

Marcelino Bicho Dos Santos

Proceedings of the 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013

A study on MOSFET rectifiers maximum output voltage for RF power harvesting circuits.

[BibT_eX]

[DOI]

Proceedings of the 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013

A reconfigurable computing architecture using magnetic tunneling junction memories.

[BibT_eX]

[DOI]

Proceedings of the 23rd International Conference on Field programmable Logic and Applications, 2013

2012

Efficient biasing circuit strategies for inductorless wideband low noise amplifiers with feedback.

[BibT_eX]

[DOI]

José M. Dores

Edwin C. Becerra-Alvarez

José M. de la Rosa

Microelectron. J., 2012

An inductorless CMOS quadrature oscillator continuously tuneable from 3.1 to 10.6 GHz.

[BibT_eX]

[DOI]

Int. J. Circuit Theory Appl., 2012

A High-Performance Reconfigurable Computing architecture using a magnetic configuration memory.

[BibT_eX]

[DOI]

Proceedings of the 2012 International Conference on Reconfigurable Computing and FPGAs, 2012

An ultra compact wideband combined LNA-oscillator-mixer for biomedical applications.

[BibT_eX]

[DOI]

Proceedings of the 55th IEEE International Midwest Symposium on Circuits and Systems, 2012

PyCO: A parallel genetic algorithm optimization tool for analog circuits.

[BibT_eX]

[DOI]

Renan B. Pinheiro

Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

A digital-to-analog converter for a cortical microelectrode stimulator.

[BibT_eX]

[DOI]

Miguel Santos

Moisés Simões Piedade

Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

An IR-UWB transmitter with digital pulse duration control.

[BibT_eX]

[DOI]

David Correia

Marcelo dal Alba

Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

Non-volatile memory circuits for FIMS and TAS writing techniques on magnetic tunnelling junctions.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

A 4-bit 1.5GSps 4.2mW comparator-based binary search ADC in 90nm.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

A 749nW 1MSps 8-bit SAR ADC at 0.5V employing boosted switches.

[BibT_eX]

[DOI]

Saeid Nooshabadi

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

A study on MOSFET rectifiers with transistors operating in the weak inversion region.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

Design and characterization of a QLUT in a standard CMOS process.

[BibT_eX]

[DOI]

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

2011

An Ultra-Wideband Impulse-Radio Transceiver Chipset Using Synchronized-OOK Modulation.

[BibT_eX]

[DOI]

IEEE J. Solid State Circuits, 2011

Low Power Multiple-Value Voltage-Mode Look-Up Table for Quaternary Field Programmable Gate Arrays.

[BibT_eX]

[DOI]

J. Low Power Electron., 2011

Energy harvesting circuit using integrated transformer.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

An ISM 2.4 GHz low-IF receiver frontend.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

A 1 mW low phase-noise relaxation oscillator.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

2010

A 5 GHz quadrature relaxation oscillator with mixing for improved testability or compact front-end implementation.

[BibT_eX]

[DOI]

Manuel M. Silva

Int. J. Circuit Theory Appl., 2010

Experimental comparison of phase-noise in cross-coupled RC- and LC-oscillators.

[BibT_eX]

[DOI]

Manuel M. Silva

Int. J. Circuit Theory Appl., 2010

An Efficient Low Power Multiple-Value Look-Up Table Targeting Quaternary FPGAs.

[BibT_eX]

[DOI]

Proceedings of the Integrated Circuit and System Design. Power and Timing Modeling, Optimization, and Simulation, 2010

An Ultra-Low-Power interference-robust IR-UWB transceiver chipset using self-synchronizing OOK modulation.

[BibT_eX]

[DOI]

Proceedings of the IEEE International Solid-State Circuits Conference, 2010

Recent advances in IR-UWB transceivers: An overview.

[BibT_eX]

[DOI]

David D. Wentzloff

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2010), May 30, 2010

Reconfigurable Circuits Using Magnetic Tunneling Junction Memories.

[BibT_eX]

[DOI]

Victor Silva

Horácio C. Neto

Proceedings of the Emerging Trends in Technological Innovation, 2010

2009

Combined LNA and Mixer Circuits for 2.4 GHz ISM Band.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2009), 2009

Run-Time Reconfigurable Array Using Magnetic RAM.

[BibT_eX]

[DOI]

Proceedings of the 12th Euromicro Conference on Digital System Design, 2009

2008

Switching Time in Relaxation Oscillations of Emitter-Coupled Multivibrators.

[BibT_eX]

[DOI]

Igor M. Filanovsky

IEEE Trans. Circuits Syst. II Express Briefs, 2008

A Pulse Generator for UWB-IR Based on a Relaxation Oscillator.

[BibT_eX]

[DOI]

IEEE Trans. Circuits Syst. II Express Briefs, 2008

Synchronization of two LC- oscillators using capacitive coupling.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

Multi-band combined LNA and mixer.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

New low-power 1.5-bit time-interleaved MDAC based on MOS capacitor amplification.

[BibT_eX]

[DOI]

Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, 2008

2007

The Effect of Mismatches and Delay on the Quadrature Error of a Cross-Coupled Relaxation Oscillator.

[BibT_eX]

[DOI]

Michiel H. L. Kouwenhoven

Luís B. Oliveira

IEEE Trans. Circuits Syst. I Regul. Pap., 2007

Experimental Evaluation of Phase-Noise and Quadrature Error in a CMOS 2.4 GHz Relaxation Oscillator.

[BibT_eX]

[DOI]

Igor M. Filanovsky

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2007), 2007

Techniques for Dual-Band LNA Design using Cascode Switching and Inductor Magnetic Coupling.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2007), 2007

2006

Quadrature Van der Pol oscillators using second harmonic coupling.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

A 5-GHz combined oscillator/mixer.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

Synchronization of mutually coupled LC-oscillators.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

2005

On phase noise in quadrature cross-coupled oscillators.

[BibT_eX]

[DOI]

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

A wide-band low-noise amplifier with double loop feedback.

[BibT_eX]

[DOI]

Koen van Hartingsveldt

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

2004

A programmable cellular neural network circuit.

[BibT_eX]

[DOI]

Proceedings of the 17th Annual Symposium on Integrated Circuits and Systems Design, 2004

A 2.4 GHz CMOS quadrature LC-oscillator/mixer.

[BibT_eX]

Igor M. Filanovsky

Proceedings of the 2004 International Symposium on Circuits and Systems, 2004

A very low-power CMOS parallel A/D converter for embedded applications.

[BibT_eX]

[DOI]

Proceedings of the 2004 International Symposium on Circuits and Systems, 2004

2003

A low-power CMOS folding and interpolation A/D converter with error correction.

[BibT_eX]

[DOI]

R. T. Silva

Proceedings of the 2003 International Symposium on Circuits and Systems, 2003

A quadrature relaxation oscillator-mixer in CMOS.

[BibT_eX]

[DOI]

Michiel H. L. Kouwenhoven

Proceedings of the 2003 International Symposium on Circuits and Systems, 2003

2001

The effect of mismatch and disturbances on the quadrature relation of a cross-coupled relaxation oscillator.

[BibT_eX]

[DOI]

Michiel H. L. Kouwenhoven

Proceedings of the 2001 International Symposium on Circuits and Systems, 2001

1994

Error Analysis of Parallel Analog to Digital Converters.

[BibT_eX]

[DOI]