1 A 1 . 8V Digital-Audio Sigma-Delta Modulator in 0 . 8-μ m CMOS *


Oversampling techniques based on sigma-delta (Σ∆) modulation offer numerous advantages for the realization of high-resolution analog-to-digital (A/D) converters in a low-voltage environment. This paper examines the design and implementation of a CMOS Σ∆ modulator for digital-audio A/D conversion that operates from a single 1.8-V power supply. A cascaded… (More)

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