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A Compensation Technique for Two-Stage Differential OTAs

Abdulaziz, Mohammed (author)
Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
Törmänen, Markus (author)
Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
Sjöland, Henrik (author)
Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
 (creator_code:org_t)
2014
2014
English.
In: IEEE Transactions on Circuits and Systems II: Express Briefs. - 1549-7747. ; 61:8, s. 594-598
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

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

Publication and Content Type

art (subject category)
ref (subject category)

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