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- Listar Ponencias (Instituto de Microelectrónica de Sevilla (IMSE-CNM)) por autor
Listar Ponencias (Instituto de Microelectrónica de Sevilla (IMSE-CNM)) por autor "Pérez Verdú, Belén"
Mostrando ítems 21-37 de 37
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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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Ponencia
Form Factor Improvement of Smart-Pixels for Vision Sensors through 3-D Vertically- Integrated Technologies
Rodríguez Vázquez, Ángel Benito; Carmona Galán, Ricardo; Fernández Berni, Jorge; Vargas Sierra, Sonia; Leñero Bardallo, Juan Antonio; Suárez Cambre, Manuel; Brea Sánchez, Víctor Manuel; Pérez Verdú, Belén (Institute of Electrical and Electronics Engineers, 2014)While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and ...
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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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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 ...
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Ponencia
High-performance ΣΔ ADC for ADSL applications in 0.35μm CMOS digital technology
Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)We present a ΣΔ modulator designed for ADSL applications in a 0.3Sμm CMOS pure digital technology. It employs a 4th-order ...
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Ponencia
MATLAB/SIMULINK-Based High-Level Synthesis of Discrete-Time and Continuous-Time Sigma-Delta Modulators
Ruiz Amaya, Jesús; Rosa Utrera, José Manuel de la; Medeiro Hidalgo, Fernando; Fernández Fernández, Francisco Vidal; Río Fernández, Rocío del; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2004)This paper describes a tool that combines an accurate SIMULINK-based time-domain behavioural simulator with a statistical ...
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Ponencia
Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito; Huertas Díaz, José Luis (Institute of Electrical and Electronics Engineers, 1994)This communication reports a new modeling of opamp-induced harmonic distortion in SC ΣΔ modulators, which is aimed to ...
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Ponencia
Non-ideal quantization noise shaping in switched-current bandpass ΣΔ 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, 1999)This paper presents a systematic analysis of the major switched-current (SI) errors and their influence on the quantization ...
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Ponencia
Nonlinear time-domain macromodeling of OTA circuits
Pérez Verdú, Belén; Cruz Moreno, J.; Linares Barranco, Bernabé; Rodríguez Vázquez, Ángel Benito; Huertas Díaz, José Luis; Sánchez Sinencio, Edgar (Institute of Electrical and Electronics Engineers, 1989)The authors present an accurate nonlinear macromodel of the operational transconductance amplifier (OTA) which is suitable ...
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Ponencia
Practical considerations for the design of cascade multi-bit high-frequency /spl Sigma//spl Delta/ modulators
Medeiro Hidalgo, Fernando; Río Fernández, Rocío del; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1998)Recommendations are given for efficient design of high-frequency /spl Sigma//spl Delta/ modulators using multi-stage ...
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Ponencia
Quantization noise shaping degradation in switched-current bandpass sigma-delta modulators
Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Rodríguez Vázquez, Ángel Benito (1997) -
Ponencia
Reconfiguration of Cascade ΣΔ Modulators for Multistandard GSM/Bluetooth/UIMTS/WLAN Transceivers
Morgado García de la Polavieja, Alonso; Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Fernández Fernández, Francisco Vidal; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2006)This paper presents design considerations for cascade Sigma-Delta Modulators (ΣΔMs) included in multi-standard wireless ...
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Ponencia
Reliable analysis of settling errors in SC integrators - application to high-speed low-power ΣΔ modulators design
Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Rodríguez Vázquez, Ángel Benito (1999)This paper presents a detailed study on the transient response of SC integrators taking into account the effects of ...
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Ponencia
Reliable analysis of settling errors in SC integrators-application to the design of high-speed /spl Sigma//spl Delta/ modulators
Río Fernández, Rocío del; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2000)This paper presents a detailed study on the transient response of SC integrators which takes into account the effects of ...
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Ponencia
Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - 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 analyses the transient behaviour of SwItched-current (SI) memory cells placed at the front-end of high-speed ...
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Ponencia
Top-Down Design of a xDSL 14-bit 4MSh ZA Modulator in Digital CMOS Technology
Río Fernández, Rocío del; Rosa Utrera, José Manuel de la; Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)This paper describes the design of a Sigma-Delta modulator aimed for A/D conversion in xDSL applications, featuring ...
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Ponencia
Using CAD Tools for the Automatic Design of Low-Power ΣΔ Modulators
Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rosa Utrera, José Manuel de la; Rodríguez Vázquez, Ángel Benito (1997)This paper illustrates the use of a CAD methodology to design a high-resolution 2nd-order ZA modulator with optimized power ...