IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
A bandgap reference with resistance variation compensated
Joo-Seong KimJa-Hyuck KooJea-Ho LeeBai-Sun Kong
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2011 Volume 8 Issue 19 Pages 1602-1607

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Abstract

This paper describes a novel high-precision bandgap reference with resistance variation compensated. Novel process-compensated emitter current generator allows a substantial reduction on VBE variation, resulting in an improved accuracy of the proposed bandgap reference. Comparison results in a 0.13µm CMOS technology indicated that the proposed voltage reference achieved up to 62% improvement in terms of accuracy, as compared to conventional bandgap reference. Process variation of reference voltage is shown to be ±3.67mV for all process corners without any post-process trimming.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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