Artículo
On chopper effects in discrete-time ΣΔ modulators
Autor/es | Léger, Gildas
Ginés Arteaga, Antonio José Peralías Macías, Eduardo Rueda Rueda, Adoración |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2010 |
Fecha de depósito | 2018-03-23 |
Publicado en |
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Resumen | Analog-to-digital converters based on ΣΔ modulators are used in a wide variety of applications. Due to their inherent monotonous behavior, high linearity, and large dynamic range, they are often the preferred option for ... Analog-to-digital converters based on ΣΔ modulators are used in a wide variety of applications. Due to their inherent monotonous behavior, high linearity, and large dynamic range, they are often the preferred option for sensor and instrumentation. Offset and flicker noise are usual concerns for this type of applications, and one way to minimize their effects is to use a chopper in the front-end integrator of the modulator. Due to its simple operation principle, the action of the chopper in the integrator is often overlooked. In this paper, we provide an analytical study of the static effects in ΣΔ modulators, which shows that the introduction of chopper is not transparent to the modulator operation and should thus be designed with care. |
Agencias financiadoras | Gobierno de España Consejo Superior de Investigaciones Científicas (CSIC) |
Identificador del proyecto | TEC-2007-68072
200850I213 |
Cita | Léger, G., Ginés Arteaga, A.J., Peralías Macías, E. y Rueda Rueda, A. (2010). On chopper effects in discrete-time ΣΔ modulators. IEEE Transactions on Circuits and Systems I: Regular Papers, 57 (9), 2438-2449. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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On Chopper Effects.pdf | 797.3Kb | [PDF] | Ver/ | |