An N/sup th/ order central symmetrical layout pattern for nonlinear gradients cancellation

In this paper, systematic mismatch due to parameter gradients is modeled and analyzed. A new layout strategy with flexible cell placement is proposed. Theoretical analysis shows its property of canceling the mismatch between two devices due to up to n/sup th/ order gradient effects by using 2/sup n/...

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Bibliographic Details
Published in2005 IEEE International Symposium on Circuits and Systems (ISCAS) pp. 4835 - 4838 Vol. 5
Main Authors Xin Dai, Chengming He, Hanqing Xing, Degang Chen, Geiger, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
Analog-digital conversion
Capacitors
Circuit simulation
Fabrication
Helium
Mirrors
Mixed analog digital integrated circuits
Pipelines
Polynomials
Sampling methods
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Summary:In this paper, systematic mismatch due to parameter gradients is modeled and analyzed. A new layout strategy with flexible cell placement is proposed. Theoretical analysis shows its property of canceling the mismatch between two devices due to up to n/sup th/ order gradient effects by using 2/sup n/ unit cells for each device. Simulation results show that the proposed technique gives better matching characteristics than other existing layout techniques under nonlinear gradients.
ISBN:9780780388345
0780388348
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2005.1465715