IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
A novel RC time constant tuning technique utilizing programmable current sources for continuous-time delta-sigma modulators
Daisuke KanemotoYu TamuraBogoda A. Indika U. K.Toshimasa MatsuokaKenji Taniguchi
Author information
JOURNALS FREE ACCESS

2012 Volume 9 Issue 6 Pages 572-579

Details
Abstract

A novel RC time constant tuning technique for continuous-time delta-sigma modulators is proposed to alleviate the systematic time constant shift originating from process variations. The proposed tuning technique uses programmable current sources instead of capacitor banks in order to reduce the implemented die area. MATLAB/Simulink simulation results demonstrate that this technique can achieve the desired SQNR even with ±30% RC time constant shifts.

Information related to the author
© 2012 by The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top