1V All-MOS Σ∆ A/D Converters in the Log-domain

Abstract

This paper presents novel low-voltage all-MOS analog circuit techniques for the synthesis of oversampling Σ∆ A/D converters. The new approach exploits the possibilities of Log-domain processing by using the MOSFET in subthreshold operation. Based on this strategy, a complete set of very low-voltage (down to 1V) low-power (below 100μW) all-MOS basic building blocks is proposed. The resulting analog circuit techniques allow the integration of Σ∆ A/D converters for low-frequency (below 100KHz) applications in digital CMOS technologies. Examples are given for a standard 0.35μm VLSI process.

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Cite this paper

@inproceedings{SerraGraells20021VA, title={1V All-MOS Σ∆ A/D Converters in the Log-domain}, author={Francisco Serra-Graells}, year={2002} }