A 6b 28GS/s Four-channel Time-interleaved Current-Steering DAC with Background Clock Phase Calibration

Woo-Cheol Kim, Dong-Shin Jo, Yi-Ju Roh, Ye-Dam Kim, S. Ryu
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引用次数: 6

Abstract

This paper presents a four-channel time-interleaved high-speed current-steering DAC with a proposed two-stage analog multiplexer (MUX). Optimum switching times of the cascaded MUX and the sub-DACs are guaranteed by background clock phase calibration with a proposed maximum-overlap-based phase detector. A 6b 28GS/s prototype DAC fabricated in 40nm CMOS achieves a SFDR of 34.6dB at a Nyquist input and consumes 103mW under dual supply voltages of 1.1V and 1.6V.
具有背景时钟相位校准的6b28gs /s四通道时间交错电流转向DAC
本文提出了一种采用两级模拟多路复用器(MUX)的四通道时间交错高速电流转向DAC。采用基于最大重叠相位检测器的背景时钟相位校准保证了级联MUX和子dac的最佳开关时间。采用40nm CMOS制造的6b 28GS/s原型DAC在Nyquist输入下的SFDR为34.6dB,在1.1V和1.6V双电源电压下的功耗为103mW。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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