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Listar por autor "Medeiro Hidalgo, Fernando"
Mostrando ítems 21-40 de 59
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Ponencia
Analysis and Experimental Characterization of Idle Tones in 2nd-Order Bandpass Sigma-Delta Modulators - A 0.8μm CMOS Switched-Current Case Study
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)Ths paper analyses the tonal behaviour of the quantization noise in 2nd-order bandpass SD modulators. The analysis previously ...
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Ponencia
Analysis and Modeling of the Non-Linear Sampling Process in Switched-Current Circuits - Application to Bandpass Sigma-Delta Modulators
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (2001)This paper presents a precise model for the transient behaviour of Fully Differential (FD) SwItched-current (SI) memory ...
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Artículo
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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Capítulo de Libro
BandPass Sigma-Delta Analog-to-Digital Converters
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Springer, 2003)The principle of ΣΔ Modulation (ΣΔM) is extended in BPΣΔMs to bandpass signals, especially but not only, with a narrow ...
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Ponencia
CMOS Architectures and circuits for high-speed decision-making from image flows
Rodríguez Vázquez, Ángel Benito; Domínguez Castro, Rafael; Jiménez Garrido, Francisco José; Morillas Castillo, Sergio; Listán, Juan; Alba, Luis; Utrera, Cayetana; Romay Juárez, Rafael; Medeiro Hidalgo, Fernando (The International Society for Optical Engineering (SPIE), 2008)We present architectures, CMOS circuits and CMOS chips to process image flows at very high speed. This is achieved by ...
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Tesis Doctoral
Convertidores A/D sigma delta de altas prestaciones en tecnologías CMOS submicrométricas
Río Fernández, Rocío del (2004)El trabajo desarrollado en esta Tesis pretende demostrar la viabilidad de implementar de forma robusta convertidores ...
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Ponencia
Design considerations for a low-noise CMOS image sensor
González Márquez, Ana; Charlet, Alexandre; Villegas, Alberto; Jiménez Garrido, Francisco José; Medeiro Hidalgo, Fernando; Domínguez Castro, Rafael; Rodríguez Vázquez, Ángel Benito (SPIE- The International Society for Optical Engineering, 2015)This paper reports a Low-Noise CMOS Image Sensor. Low-noise operation is achieved owing to the combination of a noise-enhanced ...
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Ponencia
Design Considerations for an Automotive Sensor Interface Sigma-Delta Modulator
Medeiro Hidalgo, Fernando; Rosa Utrera, José Manuel de la; Río Fernández, Rocío del; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2003)The Sigma-Delta Modulator presented in this paper contains a programmable-gain input inferface to accommodate the output ...
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Ponencia
Design Considerations for Multistandard Cascade ΣΔ Modulators
Morgado García de la Polavieja, Alonso; Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (2005)This paper discusses design considerations for cascade Sigma-Delta Modulators (ΣΔMs) included in multistandard wireless ...
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Tesis Doctoral
Diseño de Sensores Implantables para la Adquisición de Señales Neurocorticales
Rodríguez Pérez, Alberto (2013)In the last years, there has been a growing interest in the design of multichannel neurocortical recording interfaces with ...
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Ponencia
Effect of Non-Linear Settling Error on The Harmonic Distortion of Fully-Differential Switched-Current BandPass Sigma-Delta Modulators
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)This paper presents a detailed study of the effect of the non-linear settling on the harmonic distortion of BandPass SD ...
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Ponencia
Expandible high-order cascade ya modulator with constant, reduced systematic loss of resolution
Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2003)An arbitrary order sigma-delta modulator cascude architecture is presented with only I-bit loss of resolution due to scaling ...
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Ponencia
Experimental Characterization of IdleTones in Second-Order Bandpass ΣΔ Modulators
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (2000)This paper analyses the tonal behaviour of the quantization noise in second-order bandpass ΣΔ modulators. The analysis ...
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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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Ponencia
Generation of technology-portable flexible analog blocks
Castro López, Rafael; Fernández Fernández, Francisco Vidal; Delgado Restituto, Manuel; Medeiro Hidalgo, Fernando; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2002)This paper introduces a complete methodology for retargeting of analog blocks to different sets of specifications, even ...
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Artículo
Global design of analog cells using statistical optimization techniques
Medeiro Hidalgo, Fernando; Rodríguez Macías, R.; Fernández Fernández, Francisco Vidal; Domínguez Castro, Rafael; Huertas Díaz, José Luis; Rodríguez Vázquez, Ángel Benito (Springer, 1994)We present a methodology for automated sizing of analog cells using statistical optimization in a simulation based approach. ...
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Ponencia
Harmonic Distortion in Fully-Differential 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 (1999)This paper presents a systematic analysis of the harmonic distortion in SD modulators (SDMs) implemented with ...
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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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Ponencia
High-order cascade multi-bit Σ∆ modulators for high-speed A/D conversion
Río Fernández, Rocío del; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Universidad Carlos III, 1998)The use of Sigma-Delta (Σ∆) modulation for analog-to-digital conversion (ADC) in the communication frequency range is ...
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Ponencia
High-order cascade multibit /spl Sigma//spl Delta/ modulators for xDSL applications
Río Fernández, Rocío del; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2000)This paper explores the use of /spl Sigma//spl Delta/ modulators for A/D conversion in xDSL applications. Two high-order ...