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A Compensation Technique for Two-Stage Differential OTAs

Abdulaziz, Mohammed LU ; Törmänen, Markus LU and Sjöland, Henrik LU (2014) In IEEE Transactions on Circuits and Systems - II - Express Briefs 61(8). p.594-598
Abstract
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
operational amplifier, low power electronics, active filter, low pass filter, CMOS technology, RF receivers.
in
IEEE Transactions on Circuits and Systems - II - Express Briefs
volume
61
issue
8
pages
594 - 598
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000341575000010
  • scopus:84929069400
ISSN
1558-3791
DOI
10.1109/TCSII.2014.2327475
project
EIT_DARE Digitally-Assisted Radio Evolution
language
English
LU publication?
yes
id
bf33111a-dca5-4d1b-a9a5-000e959076ac (old id 4457994)
date added to LUP
2014-06-05 15:18:41
date last changed
2017-11-12 03:09:45
@article{bf33111a-dca5-4d1b-a9a5-000e959076ac,
  abstract     = {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.},
  author       = {Abdulaziz, Mohammed and Törmänen, Markus and Sjöland, Henrik},
  issn         = {1558-3791},
  keyword      = {operational amplifier,low power electronics,active filter,low pass filter,CMOS technology,RF receivers.},
  language     = {eng},
  number       = {8},
  pages        = {594--598},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Circuits and Systems - II - Express Briefs},
  title        = {A Compensation Technique for Two-Stage Differential OTAs},
  url          = {http://dx.doi.org/10.1109/TCSII.2014.2327475},
  volume       = {61},
  year         = {2014},
}