Low-Voltage Flipped Voltage Follower Cell Based Current Mirrors for High Frequency Applications

Shrivastava, Abhishek; Pandey, Rishikesh; Jindal, Caffey

doi:10.1007/s11277-019-06849-2

Cited by 13 publications

(4 citation statements)

References 20 publications

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“…To address the power consumption challenge in large-scale multichannel front-end electronics, we propose the implementation of a flipped-voltage-follower (FVF) topology at the amplifier's input stage. This topology is well-known for its wide bandwidth and low power consumption [17][18][19]. Furthermore, the amplifier was designed with a fully differential output architecture to mitigate the common-mode ripple noise originating from the power supply and ground.…”

Section: Jinst 18 P11010mentioning

confidence: 99%

A low-power and high-gain frontend for GHz application using trans-impedance amplifier for fast particle detection

Kholili,

Miyahara,

Shoji

et al. 2023

J. Inst.

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In this paper, we present a front-end for gigahertz applications, FGATI, which utilizes a transimpedance amplifier design to amplify the current signal from a diamond particle detector. The transimpedance amplifier design adopts a flipped-voltage-follower-based current-mirror (FVF-CM) topology as the input stage, offering advantages such as low power consumption, large transimpedance gain, gigahertz bandwidth, and reasonable noise levels. The FVF-CM topology was realized to improve noise reduction with a fully differential output configuration. The design was implemented as an ASIC chip using 65 nm CMOS silicon technology. The bandwidth measurement of the FGATI prototype demonstrated a 3-dB bandwidth of 1.2 GHz. Furthermore, the amplifier's power consumption is low, drawing only 7.2 mW/channel from a 1.2 V power supply, including the buffer stage. The measurement of the FGATI output signal indicated an excellent transimpedance gain of 79.2 dBΩ and a noise level of 6.7 mVrms. These findings highlight the feasibility and effectiveness of the proposed front-end design in high-frequency applications.

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Section: Jinst 18 P11010mentioning

confidence: 99%

A low-power and high-gain frontend for GHz application using trans-impedance amplifier for fast particle detection

Kholili,

Miyahara,

Shoji

et al. 2023

J. Inst.

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show abstract

“…In the FVF cell, the negative feedback creates a low impedance node that can be used to supply input current to the current mirror. In the literature, the various current mirrors created using FVF cell have also been discussed [31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

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

Jindal

Pandey

2022

Preprint

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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 G. The presented current mirror achieves bandwidth of 280 MHz and wide current mirroring range of 0 to 500 µA. The suggested current mirror is designed using CMOS technology at 0.18 µm in virtuoso, and it is simulated using Cadence’s spectre. The physical layout has been made using the layout XL editor. The efficiency of the proposed current mirror is shown by post-layout simulation results.

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“…To meet today's industry demands, various current mirror structures using different techniques have been reported in the literature. [19][20][21][22][23][24][25][26][27][28][29][30] Madhushankara and Shetty 19 and Mishra et al 20 reported the Wilson current mirror and double cascode current mirror, respectively, using the floating gate technique. The floating gate technique lowers the requirement of supply voltage and hence reduces the power dissipation.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the low output resistance and low-voltage operation of flipped voltage follower (FVF) cell, 27 it has also been extensively used to design the current mirrors. [28][29][30] But the current mirrors 28,29 based on conventional FVF cell shows less current transfer accuracy and poor current mirroring range because the conventional FVF cell's asymmetrical structure shows class-A behavior. The current mirror using class-AB FVF cell has also been reported, 30 which overcomes this limitation.…”

Section: Introductionmentioning

confidence: 99%

A high output resistance, wide bandwidth, and low input resistance current mirror using flipped voltage follower cell

Jindal

Pandey

2021

Circuit Theory & Apps

Self Cite

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The paper proposes a current mirror designed using the current sensor structure of class-AB flipped voltage follower cell at the input stage and super cascode structure at the output stage. The proposed current mirror offers low input resistance due to the current sensor at the input stage and high output resistance due to super cascode configuration at the output stage. The proposed current mirror offers a good dynamic range of 0 to 300 μA with less copying error of 0.54%, wide bandwidth of 319.8 MHz, high output resistance of 19.8 GΩ, and low input resistance of 161.34 Ω. The proposed current mirror is designed using BSIM3V3 180-nm CMOS technology and simulated using spectre in the Cadence Virtuoso analog design environment at room temperature. The Cadence Virtuoso layout XL editor has been used to design the physical layout of the proposed current mirror. The pre-layout and post-layout simulation results of the proposed current mirror have been shown to validate its performance. The Monte Carlo analysis has also been performed to analyze the effects of process variations and mismatches on the performance of the proposed current mirror.

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Low-Voltage Flipped Voltage Follower Cell Based Current Mirrors for High Frequency Applications

Cited by 13 publications

References 20 publications

A low-power and high-gain frontend for GHz application using trans-impedance amplifier for fast particle detection

A low-power and high-gain frontend for GHz application using trans-impedance amplifier for fast particle detection

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

A high output resistance, wide bandwidth, and low input resistance current mirror using flipped voltage follower cell

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