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Conventional second-order CIFB ΣΔ modulator using multi-bit quantizer and DACs

Conventional second-order CIFB ΣΔ modulator using multi-bit quantizer and DACs

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Conventional second-order CIFB ΣΔ modulator using multi-bit quantizer...
Output power spectral densities (PSDs) of the DAC a with and b without...
Architecture examples and output PSDs of the a single-loop second-order...
a Structure of the typical n-input flash DAC, b unit DAC element with...
+6 a Block diagram of a two-element DAC consisted by DACi and DACj, and b...
Analysis and Design of Low-Complexity Stochastic DEM Encoder for Reduced-Distortion Multi-bit DAC in Sigma-Delta Modulators
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  • Jan 2021
A low-complexity stochastic dynamic element matching (DEM) technique to mitigate the distortions caused by the nonlinearity of multi-bit digital-to-analog converters (DACs) in sigma-delta modulator is proposed. Multi-bit DAC noise is analyzed in detail from a signal processing point-of-view in this research, and then implementation of the basic sto...
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