Cart (Loading....) | Create Account
Close category search window
 

Robust High-Gain Amplifier Design Using Dynamical Systems and Bifurcation Theory With Digital Postprocessing Techniques

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Chengming He ; Silicon Labs. Inc, Austin, TX ; Le Jin ; Degang Chen ; Geiger, R.

A CMOS differential positive feedback amplifier (PFA) and its inherent nonlinearity were analyzed. Based on nonlinear dynamical systems and bifurcation theory, we predicted bifurcation and hysteresis phenomena in the PFA. An algorithm, which can be implemented using simple digital logic, was developed to measure the PFA's open-loop stability as the bifurcation parameter changes. Parameter-tuning algorithms were constructed that systematically move the amplifier's operational point towards the bifurcation point, at which an infinite dc gain is achieved. In order to compensate for the PFA's high sensitivity to process and temperature variations, flexible analog design integrating digital programmability and adaptive digital postprocessing techniques were developed. This flexibility and postprocessing capability could dramatically enhance the PFA's yield. Full corner simulation results over wide temperature range verified the bifurcation phenomena and the effectiveness of the control algorithms. It is shown that this amplifier can maintain high performance in advanced digital CMOS technology at very low voltage supply. It is also demonstrated that the proposed approach offers a robust PFA design with both high yield and high performance

Published in:

Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:54 ,  Issue: 5 )

Date of Publication:

May 2007

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.