一种新的电流转向DAC动态元件匹配技术

2011 IEEE International Conference of Electron Devices and Solid-State Circuits Pub Date : 2011-12-29 DOI:10.1109/EDSSC.2011.6117746

Wei Su, Y. Wang, Junlei Zhao, S. Jia, Xing Zhang

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引用次数: 4

摘要

本文针对奈奎斯特速率电流转向数模转换器(DAC)提出了一种新的动态单元匹配方法——热数据加权平均(TDWA)。当输入码发生变化时，只增加或减少所选择的单位电流源数。这种方法可以达到比全随机DEM技术更好的静态性能，但也消除了信号相关的失真，在高采样频率下实现良好的线性。

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A novel dynamic element matching technique in current-steering DAC

This paper presents a novel dynamic element matching (DEM) method called Thermo Data Weighted Average (TDWA) for Nyquist-rate current — steering digital to analog converter (DAC). When the input code changes, it only increase or decrease the number of unit current source which is be chosen. This approach can reach a better static performance than full random DEM technique but also eliminate signal dependent distortions to achieve good linearity at high sampling frequencies as other DEM implementations.

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来源期刊

2011 IEEE International Conference of Electron Devices and Solid-State Circuits

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