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Mostrando ítems 21-30 de 39
Ponencia
A 0.35μm CMOS 17-bit@40kS/s Sensor A/D Interface Based on a Programmable-Gain Cascade 2-1 ΣΔ Modulator
(Institute of Electrical and Electronics Engineers, 2004)
This paper describes the design and electrical implementation of an A/D interface for sensor applications realized in a 0.35μm standard CMOS technology. The circuit is composed of a low-noise instrumentation preamplifier ...
Ponencia
A ΣΔ modulator for a programmable-gain, low-power, high-linearity automotive sensor interface
(The International Society for Optical Engineering - SPIE, 2003)
This paper describes the design and electrical implementation of a 0.35μm CMOS 17-bit≰0kS/s Sigma-Delta Modulator (ΣΔM) forming part of a sensor interface for automotive applications. First of all, the paper discusses the ...
Ponencia
An Optimization-based Tool for the High-Level Synthesis of Discrete-time and continuous-Time Sigma-Delta Modulators in the MATLAB/SIMULINK Environment
(Institute of Electrical and Electronics Engineers, 2004)
This paper presents a MATLAB toolbox for the automated high-level sizing of ΣΔ Modulators (ΣΔMs) based on the combination of an accurate time-domain behavioural simulator and a statistical optimizer. The implementation on ...
Ponencia
Analysis and Modeling of the Non-Linear Sampling Process in Switched-Current Circuits - Application to Bandpass Sigma-Delta Modulators
(2001)
This paper presents a precise model for the transient behaviour of Fully Differential (FD) SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. This model allows us to analyze the main ...
Ponencia
La simulación eléctrica en el trabajo académicamente dirigido como vehículo docente para la enseñanza de la electrónica
(2008)
La Electrónica es una disciplina versátil en cuanto a las metodologías y técnicas docentes que pueden emplearse. Frente a las clases magistrales, experiencias de cátedra, tutorías y clases prácticas, el Trabajo Académicamente ...
Artículo
Novel topologies of cascade ΣΔ modulators for low-voltage wideband applications
(2007)
This work presents two novel topologies of cascade ΣΔ modulators with unity signal transfer function that avoid the need of digital filtering in the error cancellation logic. The combination ...
Artículo
Highly Linear 2,5-V CMOS ΣΔ Modulator for ADSL+
(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 (both ADSL and ADSL+), with up to a 4.4-MS/s digital output rate. It uses a cascade (MASH) ...
Ponencia
A new reconfigurable cascade ΣΔ modulator architecture with inter-stage resonation and no digital cancellation logic
(2009)
This paper presents a new two-stage cascade ΣΔ modula- tor architecture that uses inter-stage resonation to increase its effec- tive resolution as compared to conventional cascades and avoids the need for digital filtering ...
Ponencia
Resonation-based Cascade ΣΔ Modulators for High-Linearity Broadband A/D Conversion
(2007)
This paper presents two new architectures of cascade ΣΔ modulators that, based on the use of resonation, allow to increase the effective resolution compared to previously reported topologies whereas keeping relaxed ...
Ponencia
High-performance ΣΔ ADC for ADSL applications in 0.35μm CMOS digital technology
(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 3-stage cascade architecture including both single-bit and multi-bit quantizers with programmable ...