A High Precision CMOS Bandgap Voltage Reference Source Based on Chopper Technology

LIU Jia-nan; HUANG Lu

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A High Precision CMOS Bandgap Voltage Reference Source Based on Chopper Technology

更新时间：2026-09-04

- A High Precision CMOS Bandgap Voltage Reference Source Based on Chopper Technology
- Vol. 33, Issue 12, Pages: 161-164(2016)
- 作者机构：
  
  中国科学技术大学电子科学与技术系,安徽,合肥,230027
- 作者简介：
- 基金信息：
- DOI：
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- Published：2016
- 稿件说明：
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刘家楠, 黄鲁. 一种采用斩波调制技术的高精度带隙基准源[J]. 微电子学与计算机, 2016, 33(12): 161-164.

LIU Jia-nan, HUANG Lu. A High Precision CMOS Bandgap Voltage Reference Source Based on Chopper Technology[J]. 2016, 33(12): 161-164.
刘家楠, 黄鲁. 一种采用斩波调制技术的高精度带隙基准源[J]. 微电子学与计算机, 2016, 33(12): 161-164. DOI：

LIU Jia-nan, HUANG Lu. A High Precision CMOS Bandgap Voltage Reference Source Based on Chopper Technology[J]. 2016, 33(12): 161-164. DOI：

摘要

采用TSMC 40 nm CMOS工艺

设计了一种高精度的CMOS带隙基准源.首先分析带隙基准的误差

以及误差的消除手段

然后使用斩波技术和凹口滤波器(notch filter)消除失调电压

以及减少斩波带来的纹波影响.最后通过蒙塔卡洛仿真表明该基准源在使用斩波技术后3精度提高了7.7倍

达到0.54%.该基准源在-20~125℃的温度范围内温度系数为14×10/℃.

Abstract

A high precision CMOS bandgap voltage reference source fabricated in TSMC 40 nm CMOS is presented in this paper. Error source of bandgap and the way to eliminate it are analyzed. By using chopper technology and notch filter

not only offset voltage is removed but also ripple wave caused by chopper technology is lessened. Based on simulation

compared to bandgap without chopper technology

3σ inaccuracy of the bandgap with chopper technology increased by 7.7 times with a maximum 3σ inaccuracy of 0.54% and a temperature coefficient of 14×10/℃.

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references

Guang Ge, Cheng Zhang, Gian Hoogzaad, et al. A single-trim CMOSbandgap reference with a 3σ inaccuracy of 0.15% from -40℃ to 125℃[J]. IEEE Journal Solid-State Circuits, 2011, 46(11): 2693-2701. DOI: 2693

Brito J P M, Klimach H, Bampi S. A design methodology for matching improvement in bandgap references[C]//Quality Electronic Design, 2007. ISQED 07. 8th International Symposium on. San Jose, CA, 2007: 586-594.

Vasilica A G, Pristavu G, Pasoi C, et al. Offset cancellation in bandgap references with CMOS operational amplifiers[C]//Semiconductor Conference (CAS), 2011 International. Sinaia: IEEE, 2011: 421-424.

Ling Du, Ning Ning, Wu Kejun, et al. A process variation insensitive bandgap reference with self-calibration technique[C]//ASIC (ASICON), 2013 IEEE 10th International Conference on. Shenzhen: IEEE, 2013: 1-4.

Perry R T, Lewis S H, Brokaw A P, et al. A 1.4V supply CMOS fractional bandgap reference[J]. IEEE Journal Solid-State Circuits, 2007, 42(10): 2180-2186, . DOI: 2180

Enz C C, Temes G C, . Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization[J]. In Proceedings of the IEEE, 1996, 84(11): 1584-1614. DOI: 1584

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