FRC: A method for extending the resolution of nyquist rate converters using oversampling

Ramesh Harjani

doi:10.1109/82.663805

FRC: A method for extending the resolution of nyquist rate converters using oversampling

Ramesh Harjani

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Nyquist rate converters have traditionally been used for low to moderate resolution data acquisition applications. In this paper, we describe a feedforward residue compensation (FRC) technique to extend the resolution of such converters using an oversampling modulator loop. Closed-form analytical expressions are developed to provide insight into the operation and limits on the resolution of such converters. Simulation results are used to verify the operation and confirm the limitations of this technique.

Original language	English (US)
Pages (from-to)	482-494
Number of pages	13
Journal	IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Volume	45
Issue number	4
DOIs	https://doi.org/10.1109/82.663805
State	Published - 1998

Keywords

High resolution
Nyguist rate converters
Oversampled converters
Residue compensation
Sigma-delta

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abstract = "Nyquist rate converters have traditionally been used for low to moderate resolution data acquisition applications. In this paper, we describe a feedforward residue compensation (FRC) technique to extend the resolution of such converters using an oversampling modulator loop. Closed-form analytical expressions are developed to provide insight into the operation and limits on the resolution of such converters. Simulation results are used to verify the operation and confirm the limitations of this technique.",

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KW - Sigma-delta

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FRC: A method for extending the resolution of nyquist rate converters using oversampling

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