D-A converter based variation analysis for analog layout design
ASP-DAC（2010）
摘要
For analog circuits, the current source is one of the most essential functions, and variation of its characteristic seriously influences to the accuracy of the performance. This paper presents a new methodology for analyzing the layout dependency of the variation of the current source transistor. We employ a current-driven D-A converter to investigate the dependency of the current source upon the relative accuracy and the ¿. We implemented the D-A converts with various layout structures into TEG(Test Element Group), and evaluated them. The analysis convinced us that the diffusion sharing and gate folding significantly influence to the variation of ¿ and relative accuracy.
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关键词
analog circuits,current source,analogue circuits,various layout structure,essential function,test element group,constant current sources,variation analysis,current-driven d-a converter,diffusion sharing,integrated circuit design,layout structures,layout dependency,analog layout design,analog circuit,relative accuracy,digital-analogue conversion,current source transistor,transistors,layout,soc,image recognition,accuracy,variational analysis,logic gates
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