J
João Goes
Researcher at Universidade Nova de Lisboa
Publications - 180
Citations - 1394
João Goes is an academic researcher from Universidade Nova de Lisboa. The author has contributed to research in topics: CMOS & Amplifier. The author has an hindex of 18, co-authored 180 publications receiving 1281 citations. Previous affiliations of João Goes include University of Lisbon & Instituto Superior Técnico.
Papers
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Proceedings ArticleDOI
Design of low-voltage CMOS pipelined ADCs using 1 pico-Joule of energy per conversion
TL;DR: It is demonstrated that multi-bit rather than minimum resolution-per-stage architectures are better suited for low-voltage operation and also that, either switched-opamp or clock-boosting techniques can produce equivalent realizations in terms of power efficiency.
Proceedings ArticleDOI
A CMOS variable width short-pulse generator circuit for UWB RADAR applications
TL;DR: This paper describes a variable width short pulse generator circuit for UWB radar applications, designed in a 0.18mum CMOS technology, capable of generating pulses with a duration from 0.7 ns to 3.5 ns and an amplitude of 0.5 V.
Proceedings ArticleDOI
A 1.2 V 300 μW second-order switched-capacitor Δ∑ modulator using ultra incomplete settling with 73 dB SNDR and 300 kHz BW in 130 nm CMOS
TL;DR: This paper presents a Δ∑ modulator (Δ∑M) circuit based on the implementation of discrete time filters using ultra incomplete settling (UIS), which allows building a Δ ∑M using mostly dynamic elements thus reducing the power dissipation.
Journal ArticleDOI
Digital-domain self-calibration technique for video-rate pipeline A/D converters using Gaussian white noise
TL;DR: A digital-domain self-calibration technique for video-rate pipeline A/D converters based on a Gaussian white noise input signal is presented and a design example is shown to illustrate that the overall linearity of a pipeline ADC can be highly improved using this technique.
Journal ArticleDOI
Single-Stage OTA Biased by Voltage-Combiners With Enhanced Performance Using Current Starving
TL;DR: This brief presents an improved single-stage amplifier biased by voltage-combiners, through the proper usage of current starving, which shows an enhancement of the low-frequency gain, an improvement in the establishing time due to enhanced gain-bandwidth product, and a high improvement of the energy efficiency.