Class-AB Flipped Voltage Follower Cell with High Current Driving Capability and Low Output Resistance for High Frequency Applications

Jindal, Caffey; Pandey, Rishikesh

doi:10.1007/s11277-020-08043-1

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…But these techniques suffer from the limitation of special fabrication steps. The flipped voltage follower (FVF) cell is another useful technique that is extensively used in analog circuits to make them work at low supply voltage [26][27][28][29][30]. Basically, FVF cell is an improved version of voltage follower as it is cascode amplifier with negative feedback and unity gain.…”

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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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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High Slew-Rate and Very-Low Output Resistance Class-AB Flipped Voltage Follower Cell for Low-Voltage Low-Power Analog Circuits

Jindal¹,

Pandey²

2021

Wireless Pers Commun

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Impedance-mode capacitance multiplier with OTA-based flipped voltage follower for high accuracy and large multiplication factor

Padilla-Cantoya

Gurrola-Navarro

Bonilla-Barragan

et al. 2022

IEICE Electron. Express

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A capacitance multiplier with large multiplication factor, increased accuracy, and class AB operation is presented. The multiplier is an impedance mode implementation consisting of a Flipped Voltage Follower based on Operational Transconductance Amplifiers (OTA). This gives the possibility to offer rail-to-rail operation and class AB operation to drive demanding loads depending on the application. In addition, one of the OTAs is designed to offer a transconductance gain based on passive resistors and achieve increased accuracy in the multiplication factor by means of proper layout techniques. The circuit was implemented in a 0.5µm technology and has multiplication factors of 10, 100, 1k and 10k, a power dissipation of 0.56 mW and a silicon area of 0.059 mm 2 . Simulation and experimental results of the multiplier demonstrate the proper operation.

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Class-AB Flipped Voltage Follower Cell with High Current Driving Capability and Low Output Resistance for High Frequency Applications

Cited by 3 publications

References 27 publications

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

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

High Slew-Rate and Very-Low Output Resistance Class-AB Flipped Voltage Follower Cell for Low-Voltage Low-Power Analog Circuits

Impedance-mode capacitance multiplier with OTA-based flipped voltage follower for high accuracy and large multiplication factor

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