An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement

Moaaz Ahmed; Ikramullah Shah; Fang Tang; Amine Bermak

doi:10.1109/ISCAS.2015.7169186

An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement

Moaaz Ahmed, Ikramullah Shah, Fang Tang, Amine Bermak

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

28 Citations (Scopus)

Abstract

An improved recycling folded cascode operational transconductance amplifier with gain boosting and enhanced phase-margin is proposed. Among four variants of folded cascode amplifiers that have been implemented in TSMC 0.18μm CMOS process under same power and area constraints, the proposed amplifier achieves the lowest settling error of less than 0.5% compared to 1.1% settling error by Improved Recycling Folded Cascode (IRFC), 1.4% settling error by Recycling Folded Cascode (RFC) and 30% settling error by conventional Folded Cascode (FC) amplifier. This performance enhancement is attributed to 30dB increment in low-frequency gain and 7° improvement in the phase margin when compared with the second best performing Improved Recycling Folded Cascode amplifier.

Original language	English
Title of host publication	2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2473-2476
Number of pages	4
ISBN (Electronic)	9781479983919
DOIs	https://doi.org/10.1109/ISCAS.2015.7169186
Publication status	Published - 27 Jul 2015
Externally published	Yes
Event	IEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal Duration: 24 May 2015 → 27 May 2015

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2015-July
ISSN (Print)	0271-4310

Conference

Conference	IEEE International Symposium on Circuits and Systems, ISCAS 2015
Country/Territory	Portugal
City	Lisbon
Period	24/05/15 → 27/05/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

Gain boosting
Improved recycling folded cascode amplifier
phase margin enhancement

Access to Document

10.1109/ISCAS.2015.7169186

Cite this

Ahmed, M., Shah, I., Tang, F., & Bermak, A. (2015). An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement. In 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015 (pp. 2473-2476). Article 7169186 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2015-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2015.7169186

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abstract = "An improved recycling folded cascode operational transconductance amplifier with gain boosting and enhanced phase-margin is proposed. Among four variants of folded cascode amplifiers that have been implemented in TSMC 0.18μm CMOS process under same power and area constraints, the proposed amplifier achieves the lowest settling error of less than 0.5\% compared to 1.1\% settling error by Improved Recycling Folded Cascode (IRFC), 1.4\% settling error by Recycling Folded Cascode (RFC) and 30\% settling error by conventional Folded Cascode (FC) amplifier. This performance enhancement is attributed to 30dB increment in low-frequency gain and 7° improvement in the phase margin when compared with the second best performing Improved Recycling Folded Cascode amplifier.",

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author = "Moaaz Ahmed and Ikramullah Shah and Fang Tang and Amine Bermak",

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doi = "10.1109/ISCAS.2015.7169186",

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Ahmed, M, Shah, I, Tang, F & Bermak, A 2015, An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement. in 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015., 7169186, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2015-July, Institute of Electrical and Electronics Engineers Inc., pp. 2473-2476, IEEE International Symposium on Circuits and Systems, ISCAS 2015, Lisbon, Portugal, 24/05/15. https://doi.org/10.1109/ISCAS.2015.7169186

An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement. / Ahmed, Moaaz; Shah, Ikramullah; Tang, Fang et al.
2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 2473-2476 7169186 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2015-July).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

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N2 - An improved recycling folded cascode operational transconductance amplifier with gain boosting and enhanced phase-margin is proposed. Among four variants of folded cascode amplifiers that have been implemented in TSMC 0.18μm CMOS process under same power and area constraints, the proposed amplifier achieves the lowest settling error of less than 0.5% compared to 1.1% settling error by Improved Recycling Folded Cascode (IRFC), 1.4% settling error by Recycling Folded Cascode (RFC) and 30% settling error by conventional Folded Cascode (FC) amplifier. This performance enhancement is attributed to 30dB increment in low-frequency gain and 7° improvement in the phase margin when compared with the second best performing Improved Recycling Folded Cascode amplifier.

AB - An improved recycling folded cascode operational transconductance amplifier with gain boosting and enhanced phase-margin is proposed. Among four variants of folded cascode amplifiers that have been implemented in TSMC 0.18μm CMOS process under same power and area constraints, the proposed amplifier achieves the lowest settling error of less than 0.5% compared to 1.1% settling error by Improved Recycling Folded Cascode (IRFC), 1.4% settling error by Recycling Folded Cascode (RFC) and 30% settling error by conventional Folded Cascode (FC) amplifier. This performance enhancement is attributed to 30dB increment in low-frequency gain and 7° improvement in the phase margin when compared with the second best performing Improved Recycling Folded Cascode amplifier.

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Ahmed M, Shah I, Tang F, Bermak A. An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement. In 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 2473-2476. 7169186. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2015.7169186

An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement

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Keywords

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