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Listar Artículos (Instituto de Microelectrónica de Sevilla (IMSE-CNM)) por autor "Pérez Verdú, Belén"
Mostrando ítems 1-16 de 16
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Artículo
A 13-bit, 2.2-MS/s, 55-mW multibit cascade ΣΔ modulator in CMOS 0.7-μm single-poly technology
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1999)This paper presents a CMOS 0.7-μm ΣΔ modulator IC that achieves 13-bit dynamic range at 2.2 MS/s with an oversampling ratio ...
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Artículo
A CMOS 0.8 μm fully differential current mode buffer for HF SI circuits
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Domínguez Castro, Rafael; Rodríguez Vázquez, Ángel Benito (Elsevier, 1998)We present a high-frequency fully-differential current-mode buffer to interface off-chip currents with no significant ...
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A CMOS 0.8- µm transistor-only 1.63-MHz switched-current bandpass ΣΔ modulator for AM signal A/D conversion
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2000)This paper presents a CMOS 0.8-/spl mu/m switched-current (SI) fourth-order bandpass /spl Sigma//spl Delta/ modulator ...
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Artículo
A CMOS 110-dB@40-kS/s programmable-gain chopper-stabilized third-order 2-1 cascade sigma-selta modulator for low-power high-linearity automotive aensor ASICs
Rosa Utrera, José Manuel de la; Escalera Morón, Sara; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Guerra Vinuesa, Oscar; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2005)This paper describes a 0.35-μm CMOS chopper-stabilized switched-capacitor 2-1 cascade ΣΔ modulator for automotive sensor ...
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A new nonlinear time-domain op-amp macromodel using threshold functions and digitally controlled network elements
Pérez Verdú, Belén; Huertas Díaz, José Luis; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1988)A general-purpose nonlinear macromodel for the time-domain simulation of integrated circuit operational amplifiers (op ...
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Analysis of error mechanisms in switched-current Sigma-Delta modulators
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Springer, 2004)This paper presents a systematic analysis of the major switched-current (SI) errors and their influence on the performance ...
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Chaos From Switched-Capacitor Circuits: Discrete Maps
Rodríguez Vázquez, Ángel Benito; Huertas Díaz, José Luis; Rueda Rueda, Adoración; Pérez Verdú, Belén (Institute of Electrical and Electronics Engineers, 1987)A special-purpose analog computer made of switched-capacitor circuits is presented for analyzing chaos and bifurcation ...
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Chaos via a piecewise-linear switch ed-capacitor circuit
Rodríguez Vázquez, Ángel Benito; Rueda Rueda, Adoración; Pérez Verdú, Belén; Huertas Díaz, José Luis (Institution of Engineering and Technology, 1987)A nonlinear switched-capacitor circuit that generates chaotic signals is reported. The circuit is described by a first-order ...
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Artículo
Circuits and Systems Letters: A Novel SC Oscillator
Huertas Díaz, José Luis; Rodríguez Vázquez, Ángel Benito; Pérez Verdú, Belén (Institute of Electrical and Electronics Engineers, 1984) -
Artículo
Compact CMOS active quenching/recharge circuit for SPAD arrays
Vornicu, Ion; Carmona Galán, Ricardo; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Wiley-Blackwell, 2016)Avalanche diodes operating in Geiger mode are able to detect single photon events. They can be employed to photon counting ...
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Artículo
Fourth-order cascade SC ΣΔ modulators: a comparative study
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rosa Utrera, José Manuel de la; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1998)Fourth-order cascade ΣΔ modulators are very well suited for IC implementation using analog sampled-data circuits because ...
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Artículo
High-Frequency Design of the Wien-Bridge Oscillator Using Composite Amplifiers
Rodríguez Vázquez, Ángel Benito; Huertas Díaz, José Luis; Pérez Verdú, Belén (Institute of Electrical and Electronics Engineers, 1987) -
Artículo
High-level synthesis of switched-capacitor, switched-current and continuous-time ΣΔ modulators using SIMULINK-based time-domain behavioral models
Ruiz Amaya, Jesús; Rosa Utrera, José Manuel de la; Fernández Fernández, Francisco Vidal; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2005)This paper presents a high-level synthesis tool for ΣΔ Modulators (ΣΔMs) that combines an accurate SIMULINK-based time-domain ...
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Artículo
Highly Linear 2,5-V CMOS ΣΔ Modulator for ADSL+
Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Delgado Restituto, Manuel; Medeiro Hidalgo, Fernando; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2004)We present a 90-dB spurious-free dynamic range sigma–delta modulator (ΣΔM) for asymmetric digital subscriber line applications ...
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Multi-bit cascade ΣΔ modulator for high-speed A/D conversion with reduced sensitivity to DAC errors
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rosa Utrera, José Manuel de la; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1998)This paper presents a ΣΔ modulator (ΣΔM) which combines single-bit and multi-bit quantization in a cascade architecture ...
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Artículo
Using CAD tools for shortening the design cycle of high-performance sigma–delta modulators: A 16·4 bit, 9·6 kHz, 1·71 mW ΣΔM in CMOS 0·7 μm technology
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rosa Utrera, José Manuel de la; Rodríguez Vázquez, Ángel Benito (Wiley-Blackwell, 1997)This paper uses a CAD methodology proposed by the authors to design a low-power 2nd-order Sigma-Delta Modulator (ΣΔM). ...