Abstract
With increasing process parameter variations in nanometre regime, circuits and systems encounter significant performance variations and therefore statistical analysis has become increasingly important. For complex analog and mixed-signal circuits and systems, efficient yet accurate statistical analysis has been a challenge mainly due to significant simulation and modelling time. In the past years, there have been various approaches proposed for statistical analysis of analog and mixed-signal circuits. A recent work is reported to address statistical analysis for continuous-time Delta-Sigma modulators. In this article, we generalise that method and present a hierarchical method for efficient statistical analysis of complex analog and mixed-signal circuits while maintaining reasonable accuracy. At circuit level, we use the response surface modelling method to extract quadratic models of circuit-level performance parameters in terms of process parameters. Then at system level, we use behavioural models and apply the Monte-Carlo method for statistical evaluation of system performance parameters. We illustrate and validate the method on a continuous-time Delta-Sigma modulator and an analog filter.
Original language | English (US) |
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Pages (from-to) | 1647-1661 |
Number of pages | 15 |
Journal | International Journal of Electronics |
Volume | 101 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2 2014 |
Bibliographical note
Publisher Copyright:© 2014 © 2014 Taylor & Francis.
Keywords
- Hierarchical
- Performance parameter variation
- analog and mixed-signal systems
- process parameter variation
- statistical analysis