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A Compensation Technique for Two-Stage Differential OTAs

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Author

Summary, in English

In this paper a frequency compensation method for operational transconductance amplifiers is proposed, which poses no power overhead compared to Miller compensation, while improving the 3dB bandwidth, the unity gain frequency and the slew rate. The technique employees positive feedback to introduce an extra left half plane zero to cancel a pole.The phase margin shows good robustness against process and temperature variations. The proposed technique poses no design constraints on the transconductance or capacitor values which makes it attractive for low power applications with low area overhead.

Publishing year

2014

Language

English

Pages

594-598

Publication/Series

IEEE Transactions on Circuits and Systems II: Express Briefs

Volume

61

Issue

8

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • operational amplifier
  • low power electronics
  • active filter
  • low pass filter
  • CMOS technology
  • RF receivers.

Status

Published

Project

  • EIT_DARE Digitally-Assisted Radio Evolution

Research group

  • Analog RF

ISBN/ISSN/Other

  • ISSN: 1549-7747