Design and Optimization of a Low-Noise Voltage Reference Using Chopper Stabilization Technique

PENG Lingjie; JIN Xiangliang; LIU Mengliang

doi:10.1049/cje.2017.03.020

Volume 26 Issue 5

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PENG Lingjie, JIN Xiangliang, LIU Mengliang, “Design and Optimization of a Low-Noise Voltage Reference Using Chopper Stabilization Technique,” Chinese Journal of Electronics, vol. 26, no. 5, pp. 981-985, 2017, doi: 10.1049/cje.2017.03.020

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PENG Lingjie, JIN Xiangliang, LIU Mengliang, “Design and Optimization of a Low-Noise Voltage Reference Using Chopper Stabilization Technique,” Chinese Journal of Electronics, vol. 26, no. 5, pp. 981-985, 2017, doi: 10.1049/cje.2017.03.020

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Design and Optimization of a Low-Noise Voltage Reference Using Chopper Stabilization Technique

doi: 10.1049/cje.2017.03.020

1.
School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China;
2.
Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan 411105, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61274043, No.61233010) and Hunan Provincial Natural Science Fund for Distinguished Young Scholars (No.2015JJ1014).

More Information

Corresponding author: JIN Xiangliang (corresponding author) was born in Hunan Province. He received the M.S. degree in micro technology with emphasis in electric circuits from Hunan University in 2000. He received the Ph.D. degree in micro-electronics and solid-state circuits with emphasis in CMOS image sensor design from institute of microelectronics of Chinese academy of sciences in March 2004. as one co-founder. From March 2010, he is a full professor in Xiangtan University. His research interests include MEMS and readout circuit design, CMOS image sensor design and mixed-mode application-specific integrated circuits with emphasis on high-performance imaging. (Email:jinxl@xtu.edu.cn)
Received Date: 2015-07-23
Rev Recd Date: 2015-12-15
Publish Date: 2017-09-10

Abstract

Abstract

A low-noise voltage reference is presented to enhance resolution of MEMS capacitive accelerometer and reduce system noise, in which the circuit uses Chopper stabilization (CHS) technique for the suppression of low-frequency noise. A 3.7V voltage reference chip is fabricated in a 0.5-μm CMOS process. Compared with the voltage reference without using CHS, the proposed design is much more superior in low-noise performance. Experimental results indicate that the output noise of reference voltage V_RP can reach 0.121μV/sqrt(Hz) at the vicinity of 3Hz.
- Voltage reference,
- Low noise,
- Chopper stabilization,
- Amplifier

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References

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