A Filter-Embedded Pipe-SAR ADC With Progressive Conversion and Floating Charge T

Abstract

This article presents a filter-embedded pipelined successive-approximation (SAR) (pipe-SAR) analog-to-digital converter (ADC) architecture that achieves high e fficiency and wide bandwidth for next-generation wireless applications. A progressive conversion technique is proposed to improve the conversion speed of filter-embedded SAR ADCs by parallelizing the filtering and SAR quantization phases, which also pro- vides a more process–voltage–temperature (PVT)-robust and clock-scalable transfer function