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This paper presents a modified structure and a new switching algorithm in successive-approximation analog-to-digital converters to reduce the power consumption. This technique is more efficient in applications where the input signal activity is low most of the time such as biomedical signals. For slow-varying samples, only the least significant bits of the new analog sample are extracted leading to...
Successive-approximation analog-to-digital converters (SA-ADCs) are widely used in ultra-low-power applications. In this paper, the power consumption and the linearity of capacitive-array digital-to-analog converters (DACs) employed in SA-ADCs are analyzed. Specifically, closed-form formulas for the power consumption as well as the standard deviation of INL and DNL for three commonly-used radix-2...
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