A chopped front-end system with common-mode feedback for real time ECG applications

"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. Measurem...

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Detalles Bibliográficos
Autores principales: Gardella, Pablo, Villa Fernández, Emanuel, Baez, Eduardo, Cesaretti, Juan Manuel
Formato: Ponencias en Congresos acceptedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
AMPLIFICADORES
CONVERTIDORES ANALOGICO-DIGITALES
PROCESAMIENTO DE SEÑALES
ELECTROCARDIOGRAFIA
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/1715
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
Descripción
Sumario:"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."

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