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/Report/Conference proceedingConference contribution

8 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 languageEnglish
Title of host publication2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2473-2476
Number of pages4
Volume2015-July
ISBN (Electronic)9781479983919
DOIs
Publication statusPublished - 27 Jul 2015
Externally publishedYes
EventIEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal
Duration: 24 May 201527 May 2015

Other

OtherIEEE International Symposium on Circuits and Systems, ISCAS 2015
CountryPortugal
CityLisbon
Period24/5/1527/5/15

Fingerprint

Recycling
Operational amplifiers
Cascode amplifiers

Keywords

  • Gain boosting
  • Improved recycling folded cascode amplifier
  • phase margin enhancement

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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 (Vol. 2015-July, pp. 2473-2476). [7169186] Institute of Electrical and Electronics Engineers Inc.. 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; Bermak, Amine.

2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Vol. 2015-July Institute of Electrical and Electronics Engineers Inc., 2015. p. 2473-2476 7169186.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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. vol. 2015-July, 7169186, Institute of Electrical and Electronics Engineers Inc., pp. 2473-2476, IEEE International Symposium on Circuits and Systems, ISCAS 2015, Lisbon, Portugal, 24/5/15. https://doi.org/10.1109/ISCAS.2015.7169186
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. Vol. 2015-July. Institute of Electrical and Electronics Engineers Inc. 2015. p. 2473-2476. 7169186 https://doi.org/10.1109/ISCAS.2015.7169186
Ahmed, Moaaz ; Shah, Ikramullah ; Tang, Fang ; Bermak, Amine. / An improved recycling folded cascode amplifier with gain boosting and phase margin enhancement. 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Vol. 2015-July Institute of Electrical and Electronics Engineers Inc., 2015. pp. 2473-2476
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