NDLI: A novel sub-1V bandgap reference with offset compensated techniques

Content Provider	Springer Nature Link
Author	Zhang, Yun wu Zhu, Jing Sun, Wei feng Sun, Guodong Lu, Sheng li
Copyright Year	2013
Abstract	A sub-1V bandgap reference (BGR) featuring with low offset is proposed. In order to reduce the effect of the offset of the operation amplifiers, the proposed BGR introduces feedback paths to not only realize sub-1V output but also reduce the factor of operation amplifier’s offset voltage. In addition, a cross-coupled structure is dedicated to reduce the offset voltage factor further by increasing the bipolar junction transistor’s base emitter voltage difference. The new proposed offset-compensated BGR has been successfully verified in a 0.5 μm BCD process. The relative accuracy is increased by 4 times compared with the conventional circuit. Furthermore, the proposed circuit achieves a temperature coefficient of 8.5 ppm/°C over a wide temperature range of −20 to 120 °C, power supply rejection ratio of more than 70 dB at low frequencies and a line regulation of 0.09 % easily, without requiring additional operational amplifiers or complex circuits.
Starting Page	391
Ending Page	397
Page Count	7
File Format	PDF
ISSN	09251030
Journal	Analog Integrated Circuits and Signal Processing
Volume Number	78
Issue Number	2
e-ISSN	15731979
Language	English
Publisher	Springer US
Publisher Date	2013-10-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bandgap reference Offset voltage Sub-1V Temperature coefficient Circuits and Systems Electrical Engineering Signal, Image and Speech Processing
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Signal Processing Hardware and Architecture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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