Examinando por Materia "CONVERTIDORES ANALOGICO-DIGITALES"
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Ponencia en CongresoAdvertise your A/D converter, a SP teaching strategy(2010-03) Saint-Nom, Roxana"The goal of this paper is to invite the reader to consider role-playing as a method to train Signal Processing students for professional functions they would undertake in their future careers. Interaction, communication skills and learning purposes of SP concepts are key elements of this approach. An example applied to Analog to Digital converters is detailed, to show the advantages of this technique and the enthusiasm awakened." Artículo de Publicación PeriódicaAnalysis of the Impact of the monitoring equipment on the common-mode to differential-mode conversion in bulk current injection tests(2021) Gardella, Pablo; Marini, Eduardo"In this paper, the common-mode to differential mode conversion in a Bulk Current Injection (BCI) test setup is analyzed in the presence of an optical fiber transmitter. A modular-basis analysis based on S-parameters measurements and Electromagnetic simulations has been performed. It is shown that the loading effects can change the insertion losses from the RF amplifier to the Devices Under Test, even at frequencies as low as 10MHz by 2dB and up to 23dB at worst cases. The study has been undertaken with the substitution and closed-loop methods. Quantification of this problem as well as mitigation strategies are proposed, analyzed and evaluated with the aim of improving the accuracy of BCI simulations at early-design stages. Considering the significant cost of redesigning at an advanced point in the product development cycle, the presented work expects to raise awareness about how even small changes in the BCI setup can remarkably compromise the outcome." Ponencia en CongresoA chopped front-end system with common-mode feedback for real time ECG applications(2017) Gardella, Pablo; Villa Fernández, Emanuel; Baez, Eduardo; Cesaretti, Juan Manuel"A Front-End system composed of an instrumentation amplifier with common-mode feedback and a second-order sigma-delta analog to digital converter is proposed. Chopping techniques are used to remove offset and low frequency noise to guarantee a noise floor below the signal of interest. Measurements show that common-mode feedback adds 71 dB to the CMRR at 50 Hz and the input referred noise is 1.17 μVRMS over the frequency range of 0.1 Hz to 400 Hz."