Novel high-PSRR high-order curvature-compensated bandgap voltage reference

中国邮电高校学报(英文) ›› 2016, Vol. 23 ›› Issue (2): 66-72.doi:

Novel high-PSRR high-order curvature-compensated bandgap voltage reference

周前能¹,闫凯¹,林金朝¹,庞宇¹,李国权¹,罗伟²

1. 重庆邮电大学
2. 四川理工学院

收稿日期:2015-07-15 修回日期:2015-12-31 出版日期:2016-04-28 发布日期:2016-04-28
通讯作者: 周前能 E-mail:zhouqn@cqupt.edu.cn
基金资助:
国家自然科学基金项目;国家自然科学基金项目

Novel high-PSRR high-order curvature-compensated bandgap voltage reference

Received:2015-07-15 Revised:2015-12-31 Online:2016-04-28 Published:2016-04-28
Contact: Qian-Neng ZHOU E-mail:zhouqn@cqupt.edu.cn
Supported by:
National Natural Science Foundation of China;National Natural Science Foundation of China

摘要/Abstract

摘要：

This paper proposes a novel high-power supply rejection ratio (high-PSRR) high-order curvature-compensated CMOS bandgap voltage reference (BGR) in SMIC 0.18 μm CMOS process. Three kinds of current are added to a conventional BGR in order to improve the temperature drift within wider temperature range, which include a piecewise-curvature- corrected current in high temperature range, a piecewise-curvature-corrected current in low temperature range and a proportional-to-absolute-temperature current. The high-PSRR characteristic of the proposed BGR is achieved by adopting the technique of pre-regulator. Simulation results shows that the temperature coefficient of the proposed BGR with pre-regulator is /°C from 55 °C to 125 °C with a 1.8 V power supply voltage. The proposed BGR with pre-regulator achieves PSRR of 123.51 dB, 123.52 dB, 88.5 dB and 50.23 dB at 1 Hz, 100 Hz, 100 kHz and 1 MHz respectively.

关键词:

bandgap voltage reference, pre-regulator, temperature coefficient, power supply rejection ratio

Abstract:

Key words:

bandgap voltage reference, pre-regulator, temperature coefficient, power supply rejection ratio

中图分类号:

TN432

周前能闫凯林金朝庞宇李国权罗伟. Novel high-PSRR high-order curvature-compensated bandgap voltage reference[J]. JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM, 2016, 23(2): 66-72.

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Novel high-PSRR high-order curvature-compensated bandgap voltage reference

Novel high-PSRR high-order curvature-compensated bandgap voltage reference

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