A start-up calibration method for generic current-steering D/A converters with optimal area solution

G.I. Radulov, P.J. Quinn, J.A. Hegt, A.H.M. Van Roermund

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

12 Citations (Scopus)

Abstract

This paper presents a new start-up calibration method for current-steering D/A converters, based on a 1-bit ADC. The paper proposes a new current cell that allows calibration of non-identical current sources by way of a shared calibration apparatus. The current cell uses parallel selfcalibrated unit elements. Each of these is calibrated individually and when all combined together, the accuracy of the current sources is improved. This method is independent of the DAC architecture and hence an extra degree of design freedom exists. A minimal area solution can be found through optimizing the calibration strength, since the method is not only applicable to the identical thermometer current sources of the segmented DACs. A general discussion on the new calibration method is offered and conclusions are drawn.

Original languageEnglish
Title of host publication2005 IEEE International Symposium on Circuits and Systems
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages788-791
Number of pages4
ISBN (Print)0-7803-8834-8
DOIs
Publication statusPublished - 1 Dec 2005
Event2005 IEEE International Symposium on Circuits and Systems (ISCAS 2005) - Kobe, Japan
Duration: 23 May 200526 May 2005

Conference

Conference2005 IEEE International Symposium on Circuits and Systems (ISCAS 2005)
Abbreviated titleISCAS 2005
Country/TerritoryJapan
CityKobe
Period23/05/0526/05/05

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