Practical considerations on doughnut transistors design

被引:0
作者
López, P [1 ]
Oberst, M [1 ]
Neubauer, H [1 ]
Hauer, J [1 ]
Cabello, D [1 ]
机构
[1] Univ Santiago de Compostela, Dept Elect & Comp Sci, E-15782 Santiago, Spain
来源
PROCEEDINGS OF THE 2005 EUROPEAN CONFERENCE ON CIRCUIT THEORY AND DESIGN, VOL 3 | 2005年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
For applications where speed is important and custom design is an option, doughnut transistors constitute an attractive alternative to standard topologies, efficiently reducing parasitic capacitances while keeping large W/L ratios. This paper explores the influence of the layout style on the chip performance. To this aim a two-stage op-amp where different types of doughnut layouts have been considered for the input differential pair has been constructed and measured. Experimental results suggest better performance for circle-type layouts.
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页码:213 / 216
页数:4
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