RETRACTED ARTICLE: Hybrid Cascode Miller Compensation with Bandwidth Extension for 28-nm CMOS Multistage Amplifiers Driving Large Capacitive Loads

Feed-forward techniques are explored for the design of high-frequency Operational Transconductance Amplifiers (OTAs). For single-stage amplifiers, a recycling folded-cascode OTA presents twice the GBW (197.2 MHz versus 106.3 MHz) and more than twice the slew rate (231.1 V/s versus 99.3 V/s) as a conventional folded cascode OTA for the same load, power consumption, and transistor dimensions. It is demonstrated that the efficiency of the recycling folded-cascode is equivalent to that of a telescopic OTA. As for multistage amplifiers, a No-Capacitor Feed-Forward (NCFF) compensation scheme which uses a high-frequency pole-zero doublet to obtain greater than 90 dB DC gain, GBW of 325 MHz and better than phase margin is discussed. The settling-time- of the NCFF topology can be faster than that of OTAs with Miller compensation. Experimental results for the recycling folded-cascode OTA fabricated in TSMC 0.18 m CMOS, and results of the NCFF demonstrate the efficiency and feasibility of the feed-forward schemes.

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A transconductance-enhancement cascode Miller compensation for low-power multistage amplifiers

Microelectronics Journal ◽

10.1016/j.mejo.2018.01.009 ◽

2018 ◽

Vol 73 ◽

pp. 94-100 ◽

Cited By ~ 11

Author(s):

Siwan Dong ◽

Zhangming Zhu

Keyword(s):

Low Power ◽

Miller Compensation ◽

Multistage Amplifiers

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Differential AC Boosting Compensation for Power-Efficient Multistage Amplifiers

Journal of Low Power Electronics ◽

10.1166/jolpe.2019.1623 ◽

2019 ◽

Vol 15 (4) ◽

pp. 379-387

Author(s):

Tayebeh Asiyabi ◽

Jafar Torfifard

Keyword(s):

Power Dissipation ◽

State Of The Art ◽

Operational Transconductance Amplifier ◽

Power Efficient ◽

Miller Compensation ◽

Transconductance Amplifier ◽

Multistage Amplifiers ◽

Dc Gain ◽

Capacitive Load ◽

Unity Gain

In this paper, a new architecture of four-stage CMOS operational transconductance amplifier (OTA) based on an alternative differential AC boosting compensation called DACBC is proposed. The presented structure removes feedforward and boosts feedback paths of compensation network simultaneously. Moreover, the presented circuit uses a fairly small compensation capacitor in the order of 1 pF, which makes the circuit very compact regarding enhanced several small-signal and largesignal characteristics. The proposed circuit along with several state-of-the-art schemes from the literature have been extensively analysed and compared together. The simulation results show with the same capacitive load and power dissipation the unity-gain frequency (UGF) can be improved over 60 times than conventional nested Miller compensation. The results of the presented OTA with 15 pF capacitive load demonstrated 65° phase margin, 18.88 MHz as UGF and DC gain of 115 dB with power dissipation of 462 μW from 1.8 V.

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Nested feed-forward Gm-stage and nulling resistor plus nested-Miller compensation for multistage amplifiers

Proceedings of the IEEE 2002 Custom Integrated Circuits Conference (Cat. No.02CH37285) ◽

10.1109/cicc.2002.1012832 ◽

2003 ◽

Cited By ~ 7

Author(s):

Xiaohong Peng ◽

W. Sansen

Keyword(s):

Feed Forward ◽

Miller Compensation ◽

Multistage Amplifiers ◽

Nested Miller Compensation

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RETRACTED ARTICLE: Effects of marcrosynoptic weather types on development of thermal excess in suburban areas of Debrecen

International Review of Applied Sciences and Engineering ◽

10.1556/1848.2015.6.1.9 ◽

2015 ◽

Vol 6 (1) ◽

pp. 63-69

Author(s):

S. Szegedi ◽

I. Lázár ◽

T. Tóth

Keyword(s):

Weather Types ◽

Suburban Areas ◽

Retracted Article

This article has been withdrawn - upon request by authors - by Akadémiai Kiadó due to suspected plagiarism.

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RETRACTION NOTE: Les structures des phrases dans les tracts du mai 1968

Digital Press Social Sciences and Humanities ◽

10.29037/digitalpress.43323 ◽

2019 ◽

Vol 3 ◽

pp. 00047

Author(s):

Nokiamy Sesena Tamba ◽

Myrna Laksman-Huntley

Keyword(s):

Social Sciences ◽

Public Domain ◽

Background Color ◽

Font Size ◽

Analytical Error ◽

Social Sciences And Humanities ◽

Retracted Article ◽

Du Mai ◽

Web Archive ◽

Digital Press

As of October 15, 2019, the following article is being retracted from the UGM Digital Press Social Sciences and Humanities series.“Les structures des phrases dans les tracts du mai 1968” by Nokiamy Sesena Tamba and Myrna Laksman-Huntley, Social Sciences and Humanities Series Vol 3: 00033, Proceeding of Conférence internationale sur le français 2018, Joesana Tjahjani, Merry Andriani, Sajarwa, Wening Udasmoro (eds) DOI: <a href="https://doi.org/10.29037/digitalpress.43306" target="_blank" style="background-color: rgb(255, 255, 255); font-size: 1rem;">https://doi.org/10.29037/digitalpress.43306</a>The original article is registered through this URL <a href="https://digitalpress.ugm.ac.id/article/306" target="_blank">https://digitalpress.ugm.ac.id/article/306</a>as decided by authors and conference organizers on the basis of analytical error. It may encourage potential misleading circulation of information in the future.On the following exchange of information with the publisher, it has been decided that the article will be retracted.The retracted article will remain in public domain, that is maintaining its appearance on UGM Digital Press web archive and the Conférence internationale sur le français 2018 printed version. However, it will receive a watermark to accentuate its retracted status.

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Combining Current Imaging, EBIC/EBAC, and Electrical Probing for Fast and Reliable In-Situ Electrical Fault Isolation

ISTFA 2016: Conference Proceedings from the 42nd International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2016p0454 ◽

2016 ◽

Author(s):

Stephan Kleindiek ◽

Matthias Kemmler ◽

Andreas Rummel ◽

Klaus Schock

Keyword(s):

Imaging Technique ◽

Fault Isolation ◽

28 Nm

Abstract Using a compact nanoprobing setup comprising eight probe tips attached to piezo-driven micromanipulators, various techniques for fault isolation are performed on 28 nm samples inside an SEM. The recently implemented Current Imaging technique is used to quickly image large arrays of contacts providing a means of locating faults.

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