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Novel topologies of cascade ΣΔ modulators for low-voltage wideband applications

Opened Access Novel topologies of cascade ΣΔ modulators for low-voltage wideband applications
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Autor: Morgado García de la Polavieja, Alonso
Río Fernández, Rocío del
Rosa Utrera, José Manuel de la
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Fecha: 2007
Tipo de documento: Artículo
Resumen: 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 of these two aspects make them highly tolerant to noise leakages, very robust to non-linearit ies of the circuitry and especially suited for low-voltage implementations at low oversampling. Behavioral simulations are presented that demonstrate the higher efficiency of the proposed topologies compared to existing cascades intended for wideband applications.
Tamaño: 524.1Kb
Formato: PDF

URI: https://hdl.handle.net/11441/70792

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