IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications · 2007 · 27 citations · 10 references
EngineeringElectrical EngineeringAnalog ElectronicsDigital PerformanceMicroelectronicsAnalog Integrated CircuitsDigital Integrated CircuitsDigital Signal ProcessingDistortion AnalysisMixed-signal IntegrationAccuracyAnalog-digital ConversionAnalog-to-digital ConversionAnalog-to-digital Converter DesignAnalog-to-digital ConvertersDigital-to-analog Converters
This semi-tutorial paper considers the effect of component mismatch on the static accuracy of analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) with digital correction. First, it is noted that the effective static resolution of flash ADCs is not much reduced by component mismatch: with proper digital correction, the loss due to mismatch is only about 1.3 bit, virtually independently of the mismatch level unless the mismatch is very small. Second, it is noted that current steering DACs may actually benefit from component mismatch. Moreover, with proper digital correction, current steering DACs can achieve an effective static resolution of m bits with as few as m+2 near-unit low-precision current sources
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