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Iterative Performance Model Upgradation in Geometric Programming Based Analog Circuit Sizing for Improved Design Accuracy

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2 Author(s)
Dam, S. ; Dept. of Electr. & Electron. Commun. Eng., Indian Inst. of Technol., Kharagpur, India ; Mandal, P.

In this paper, we propose a technique to improve the accuracy of the final design predicted by Geometric Programming based CMOS analog circuit sizing methodology. Here we use a multi-level AC performance modeling paradigm to develop the empirical models of circuit performance metrics. Performance models are then upgraded over iterations of design cycle. This iterative model up gradation in a sequence of geometric programming guides the final design to converge with better accuracy. The methodology is validated by designing a two-stage amplifier cascaded with a Class-A (source-follower) output buffer stage in UMC 0.18 μm technology.

Published in:

VLSI Design (VLSID), 2012 25th International Conference on

Date of Conference:

7-11 Jan. 2012