用于三角积分调制器的高能效放大器的分析与设计

IF 1.3 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Active and Passive Electronic Components Pub Date : 2023-11-23 DOI:10.1155/2023/2265990

Jinze Lai, Yuxuan Lin, Gumeng Zhao, Lijie Huang, Cong Wei, Rongshan Wei, Wei Hu

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引用次数: 0

摘要

本研究基于浮动逆变放大器（FIA），深入分析了现有 FIA 及其改进结构，并进行了仿真验证，从而提出了一种适合三角积分调制器的高能效、高增益动态放大器。与其他 FIA 结构相比，所提出的放大器在功耗和稳定性方面具有更好的折衷效果，该放大器采用中芯国际 180 nm CMOS 技术进行设计和仿真。在 1.2 V 电源下，闭环直流增益和输出摆幅分别约为 104 dB 和 ±380 mV，使用斩波电路时输入参考带内噪声约为 -100 dB。

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Analysis and Design of High-Energy-Efficiency Amplifiers for Delta-Sigma Modulators

This study presents a dynamic amplifier with high energy efficiency and high gain suitable for a delta-sigma modulator based on the floating-inverter amplifier (FIA), in-depth analysis of the existing FIA and its improved structure, and simulation verification. Compared with other FIA structures, the proposed amplifier has a better compromise in terms of power consumption and stability, which was designed and simulated using the SMIC 180 nm CMOS technology. Under a 1.2 V power supply, the closed-loop direct current (DC) gain and the output swing were about 104 dB and ±380 mV, respectively, and the input-referred in-band noise was about −100 dB with the chopper circuit.

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来源期刊

Active and Passive Electronic Components ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Active and Passive Electronic Components is an international journal devoted to the science and technology of all types of electronic components. The journal publishes experimental and theoretical papers on topics such as transistors, hybrid circuits, integrated circuits, MicroElectroMechanical Systems (MEMS), sensors, high frequency devices and circuits, power devices and circuits, non-volatile memory technologies such as ferroelectric and phase transition memories, and nano electronics devices and circuits.