A rail-to-rail input/output CMOS power amplifier

A rail-to-rail amplifier that maintains a high common-mode rejection ratio (CMRR) over the whole common-mode range and has a low harmonic distortion despite the use of relatively small output devices is discussed. The circuit, which measures only 0.3 mm/sup 2/ in a 3- mu m technology, has a quiescen...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 1990-04, Vol.25 (2), p.501-504
Main Authors: Pardoen, M.D., Degrauwe, M.G.
Format: Article
Language:English
Subjects:
Amplifiers
Applied sciences
Circuit properties
Circuits
CMOS technology
Current measurement
Distortion measurement
Drives
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Harmonic distortion
Power amplifiers
Rail to rail amplifiers
Rail to rail inputs
Total harmonic distortion
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Summary:A rail-to-rail amplifier that maintains a high common-mode rejection ratio (CMRR) over the whole common-mode range and has a low harmonic distortion despite the use of relatively small output devices is discussed. The circuit, which measures only 0.3 mm/sup 2/ in a 3- mu m technology, has a quiescent current consumption of 600 mu A and a CMRR larger than 55 dB. It handles up to 4 nF, and can, with a 5-V supply, drive 3.8 V/sub pp/ into 100 Omega (0.1% total harmonic distortion at 10 kHz).< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.52177