一个温度和电压不敏感的环形振荡器

2023 5th International Conference on Electronic Engineering and Informatics (EEI) Pub Date : 2023-06-30 DOI:10.1109/EEI59236.2023.10212739

Tianting Zhao, Yue Zhuo, Xin Yang, Yuchen Wang, Qing Miao, Fangchao Lou, Zhiqiang Liu, Tianzhi Li

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引用次数: 0

摘要

环形振荡器因其易于实现而广泛应用于现代电子系统中。然而，它的性能受到温度和电压变化的严重影响。本文提出了一种温度和电压不敏感的环形振荡器，该振荡器采用开关电容电阻和接近零温度系数的复合电阻结合负反馈来实现。该设计采用0.18um CMOS工艺，在-40°C至125°C的温度范围内，频率变化为0.92%，在1.2V至2.1V的电源电压范围内，频率变化为2.8%。结果证明了该设计在温度和电压不敏感应用中的实用性。

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A temperature and voltage-insensitive ring oscillator

Ring oscillator is widely used in modern electronic systems due to its ease of implementation. However, its performance suffers severely from temperature and voltage variations. This paper presents a temperature and voltage-insensitive ring oscillator that is realized by incorporating negative feedback using a switched-capacitive resistor and near-zero temperature coefficient composite resistors. Implemented using a 0.18um CMOS process, the proposed design exhibits a frequency variation of 0.92% over a temperature range of -40°C to 125°C and a variation of 2.8% with supply voltage ranging from 1.2V to 2.1V. The results demonstrate the practicality of the proposed design for temperature and voltage-insensitive applications.

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2023 5th International Conference on Electronic Engineering and Informatics (EEI)

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