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This paper presents a new low offset comparator with a mismatch-suppressed dynamic preamplifier Various mismatches contribute to comparators's input referred offset. The proposed mismatch suppression is achieved by sampling the mismatches at the dynamic preamplifier's output node during the precharge phase. A time-domain analysis method is utilized to quantize the suppression effects. By the techniques,...
For high-accuracy digital-to-analog converter (DAC), delay difference depending on output voltage is one of the major nonlinearities that deteriorate the dynamic performance. In this paper, an improved output-dependent delay cancellation (ODDC) technique is proposed. The proposed ODDC is implemented in simple circuit architecture and has advantages of significant improvement on the dynamic performance...
In this paper, an output-dependent delay cancellation (ODDC) technique is proposed. For a high-accuracy digital-to-analog converter (DAC), the delay differences caused by output voltage is one of the major nonlinearities that deteriorate the dynamic performance. The ODDC technique has the advantages of significant improvement on the dynamic performance in a wide frequency range without increasing...
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