High-performance flipped voltage follower based low input resistance current mirror with wide current mirroring range and high output resistance

IF 1.4 4区工程技术 Q4 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Analog Integrated Circuits and Signal Processing Pub Date : 2025-06-16 DOI:10.1007/s10470-025-02432-x

Rishikesh Pandey, Caffey Jindal

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Abstract

This paper presents a high performance current mirror with a large current mirroring range. The advantages of folded flipped voltage follower (FVF) cell and super cascode transistor are combined in proposed current mirror, which make it suitable for high performance applications. The folded FVF cell provides low resistance node which is utilized to inject the input current and therefore, proposed current mirror shows input resistance of 24.15 Ω. By employing a super cascode transistor at the output node, the output resistance is increased to 28.3 GΩ. The presented current mirror achieves bandwidth of 280 MHz and wide current mirroring range of 0 to 500 µA. The proposed current mirror has been designed using 0.18 µm CMOS technology and simulated using spectre in Cadence Virtuoso Analog Design Environment. The physical layout is designed using Cadence Virtuoso layout XL editor. The efficiency of the proposed current mirror has been demonstrated by post-layout simulation results.

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基于低输入电阻的高性能翻转电压从动器电流反射镜，具有宽电流反射范围和高输出电阻

本文提出了一种具有大电流反射范围的高性能电流反射镜。该电流反射镜结合了折叠翻转电压跟随器（FVF）单元和超级级联晶体管的优点，适合于高性能应用。折叠的FVF单元提供了低电阻节点，用于注入输入电流，因此，所提出的电流镜显示输入电阻为24.15 Ω。通过在输出节点采用超级级联晶体管，输出电阻增加到28.3 GΩ。该电流镜可实现280 MHz的带宽和0 ~ 500µA的宽电流镜像范围。采用0.18µm CMOS技术设计了该电流反射镜，并在Cadence Virtuoso模拟设计环境中使用spectre进行了仿真。物理布局设计使用Cadence Virtuoso布局XL编辑器。布局后的仿真结果验证了该电流反射镜的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Analog Integrated Circuits and Signal Processing 工程技术-工程：电子与电气

CiteScore

0.30

自引率

7.10%

发文量

141

审稿时长

7.3 months

期刊介绍： Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today. A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.