A Novel Low-voltage Low-power Oscillator used for Passive RFID

被引：0

作者：

Chen D. ^{[1
]}

Yang C. ^{[1
]}

Dong G. ^{[1
]}

Qin P. ^{[2
]}

Zeng J. ^{[1
]}

机构：

[1] College of Physics and Microelectronics Science, Hunan University, Changsha

[2] Hunan Runtronic Microelectronics Co Ltd, Changsha

来源：

Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2019年 / 46卷 / 04期

关键词：

Low-power; Low-voltage; Oscillator; Radio frequency identification(RFID);

D O I：

10.16339/j.cnki.hdxbzkb.2019.04.016

中图分类号：

学科分类号：

摘要：

A novel low-voltage low-power ring oscillator is designed, which is implemented by an SMIC's 180 nm mixed signal processing technology. Based on the feedback theory, the regulation and conversion from supply voltage to operating voltage of ring oscillators is completed by employing an amplifier, generating superior operating voltage stability as well as lower consumption. Furthermore, a high output swing is obtained with an amplitude conversion circuit. The operating frequency of the oscillator is controlled by current, resulting in the reduced effect of oscillating signal on the supply voltage VDD and the depressed supply noise. Results demonstrate that the output frequency is 2.737 MHz, the consumption is 0.8 μW with a 1 V supply, and the phase noise at the phase point is -108.7 dB at 1 MHz offset. Meanwhile, the output frequency fluctuations are kept within 0.23% when the supply voltage varies between 0.9 V and 2.1 V, which is reasonable in passive chip design. © 2019, Editorial Department of Journal of Hunan University. All right reserved.

引用

页码：110 / 114

页数：4

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