High-Accuracy Bandgap Reference of <20 ppm/°C: A Review
This review discusses the principle of typical bandgap reference circuits and analyzes their sources of errors. In order to provide readers with a clear perspective, we categorize the error sources into four types: (a) amplifier offset; (b) high-order nonlinearity of <inline-formula><math x...
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| Language: | English |
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MDPI AG
2025-01-01
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| Online Access: | https://www.mdpi.com/2674-0729/4/1/5 |
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| author | Haoyu Zhuang Xudong Chen Enzhe Zhang Qiang Li |
| author_facet | Haoyu Zhuang Xudong Chen Enzhe Zhang Qiang Li |
| author_sort | Haoyu Zhuang |
| collection | DOAJ |
| description | This review discusses the principle of typical bandgap reference circuits and analyzes their sources of errors. In order to provide readers with a clear perspective, we categorize the error sources into four types: (a) amplifier offset; (b) high-order nonlinearity of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>V</mi><mrow><mi>B</mi><mi>E</mi></mrow></msub></semantics></math></inline-formula>; (c) current mirror mismatch; and (d) other error sources. For these error sources, the most commonly used methods to reduce or minimize them to achieve high accuracy are summarized. Furthermore, this review explores sub-1V bandgap reference design techniques, addressing the increasing demand for low-power and low-voltage applications. Finally, we provide some suggestions for a future high-accuracy reference design. |
| format | Article |
| id | doaj-art-1cbdfd1375aa4b418022669c4e0011ba |
| institution | Kabale University |
| issn | 2674-0729 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chips |
| spelling | doaj-art-1cbdfd1375aa4b418022669c4e0011ba2025-08-20T03:43:26ZengMDPI AGChips2674-07292025-01-0141510.3390/chips4010005High-Accuracy Bandgap Reference of <20 ppm/°C: A ReviewHaoyu Zhuang0Xudong Chen1Enzhe Zhang2Qiang Li3School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaThis review discusses the principle of typical bandgap reference circuits and analyzes their sources of errors. In order to provide readers with a clear perspective, we categorize the error sources into four types: (a) amplifier offset; (b) high-order nonlinearity of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>V</mi><mrow><mi>B</mi><mi>E</mi></mrow></msub></semantics></math></inline-formula>; (c) current mirror mismatch; and (d) other error sources. For these error sources, the most commonly used methods to reduce or minimize them to achieve high accuracy are summarized. Furthermore, this review explores sub-1V bandgap reference design techniques, addressing the increasing demand for low-power and low-voltage applications. Finally, we provide some suggestions for a future high-accuracy reference design.https://www.mdpi.com/2674-0729/4/1/5bandgap referencehigh accuracyerror sourcecurvature correctionsub-1V reference |
| spellingShingle | Haoyu Zhuang Xudong Chen Enzhe Zhang Qiang Li High-Accuracy Bandgap Reference of <20 ppm/°C: A Review Chips bandgap reference high accuracy error source curvature correction sub-1V reference |
| title | High-Accuracy Bandgap Reference of <20 ppm/°C: A Review |
| title_full | High-Accuracy Bandgap Reference of <20 ppm/°C: A Review |
| title_fullStr | High-Accuracy Bandgap Reference of <20 ppm/°C: A Review |
| title_full_unstemmed | High-Accuracy Bandgap Reference of <20 ppm/°C: A Review |
| title_short | High-Accuracy Bandgap Reference of <20 ppm/°C: A Review |
| title_sort | high accuracy bandgap reference of 20 ppm °c a review |
| topic | bandgap reference high accuracy error source curvature correction sub-1V reference |
| url | https://www.mdpi.com/2674-0729/4/1/5 |
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