IEICE Electronics Express
Online ISSN : 1349-2543
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Sub-1-V-Output CMOS bandgap reference circuit with small area and low power consumption
Yong-Jin KwonJi-Hye BongDae Hwan KimKyeong-Sik Min
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2009 Volume 6 Issue 3 Pages 161-166

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Abstract

In this paper, a new low-VDD CMOS bandgap reference circuit with small layout area and low power consumption is proposed. The proposed circuit delivering its output voltage below 1V has its Proportional-To-Absolute-Temperature (PTAT) term compensated by the Complementary-proportional-To-Absolute- Temperature (CTAT) voltage thereby suppressing a change in its output voltage regardless of temperature and VDD variations. Using a commercial CMOS 0.18-µ m process, the proposed circuit has been verified to be able to save its layout area by 48.7% and the power consumption by 29.9% compared with the previous sub-1-V-output bandgap circuit.

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© 2009 by The Institute of Electronics, Information and Communication Engineers
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