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Sixth International Symposium on Quality of Electronic Design (ISQED'05)
Evaluation of Capacitor Ratios in Automated Accurate Common-Centroid Capacitor Arrays
San Jose, California
March 21-March 23
ISBN: 0-7695-2301-3
DiaaEldin Khalil, Ain Shams University, Cairo, Egypt
Mohamed Dessouky, Ain Shams University, Cairo, Egypt
Vincent Bourguet, University of Paris 6, Paris, France
Marie-Minerve Louerat, University of Paris 6, Paris, France
Andreia Cathelin, STMicroelectronics - Central R&D/DAIS, Crolles, France
Hani Ragai, Ain Shams University, Cairo, Egypt
In this paper, design and measurement results of a test chip that intends to evaluate differences between layout techniques for rectangular unit-capacitor arrays are introduced. Precision capacitor ratios are compared using a switched-capacitor biquad and a pseudo-floating gate configuration. The test chip is used to evaluate the effectiveness of an automatic common-centroid capacitor array generation tool with arbitrary capacitor ratios. Results indicate significant improvements in ratio accuracy, which have a direct impact on a wide range of applications such as filters for wireless communications, hard drives, and high precision baseband processing.
Citation:
DiaaEldin Khalil, Mohamed Dessouky, Vincent Bourguet, Marie-Minerve Louerat, Andreia Cathelin, Hani Ragai, "Evaluation of Capacitor Ratios in Automated Accurate Common-Centroid Capacitor Arrays," isqed, pp.143-147, Sixth International Symposium on Quality of Electronic Design (ISQED'05), 2005
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