Cell-based variable-gain amplifiers with accurate dB-linear characteristic in 0.18 μm CMOS technology

Liu, H; Zhu, X; Boon, CC; He, X

Cell-based variable-gain amplifiers with accurate dB-linear characteristic in 0.18 μm CMOS technology

Liu, H Zhu, X

Boon, CC He, X

Permalink

Publication Type:: Journal Article
Citation:: IEEE Journal of Solid-State Circuits, 2015, 50 (2), pp. 586 - 596
Issue Date:: 2015-02-01

Closed Access

	Filename	Description	Size
	06975257.pdf	Published Version	2.02 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Liu, H	en_US
dc.contributor.author	Zhu, X https://orcid.org/0000-0002-5814-394X	en_US
dc.contributor.author	Boon, CC	en_US
dc.contributor.author	He, X	en_US
dc.date.issued	2015-02-01	en_US
dc.identifier.citation	IEEE Journal of Solid-State Circuits, 2015, 50 (2), pp. 586 - 596	en_US
dc.identifier.issn	0018-9200	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118776
dc.description.abstract	© 2014 IEEE. A simple and robust "cell-based" method is presented for the design of variable-gain amplifiers (VGAs). The proposed unit cell utilizes a unique gain compensation method and achieves accurate dB-linear characteristic across a wide tuning range with low power consumption and wide bandwidth. Several such highly dB-linear unit cells can be cascaded to provide the required gain range for a VGA. To prove the concept, single-cell, 5-cell, 10-cell and 15-cell reconfigurable VGAs were fabricated in a standard 0.18 μm CMOS technology. The measurement results show that the 10-cell VGA achieves a gain range of 38.6 dB with less than 0.19 dB gain error. The 15-cell VGA can either be used as reconfigurable VGA for analog control voltage or tunable PGA for digital control stream, with the flexibility of scaling gain range, gain error/step and power consumption. For the VGA at highest gain setting, it consumes 1.12 mW and achieves a gain range of 56 dB, gain error less than 0.3 dB.	en_US
dc.relation.ispartof	IEEE Journal of Solid-State Circuits	en_US
dc.relation.isbasedon	10.1109/JSSC.2014.2368132	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	Cell-based variable-gain amplifiers with accurate dB-linear characteristic in 0.18 μm CMOS technology	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	50	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	1099 Other Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	closed_access	*
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	50	en_US

Abstract:

© 2014 IEEE. A simple and robust "cell-based" method is presented for the design of variable-gain amplifiers (VGAs). The proposed unit cell utilizes a unique gain compensation method and achieves accurate dB-linear characteristic across a wide tuning range with low power consumption and wide bandwidth. Several such highly dB-linear unit cells can be cascaded to provide the required gain range for a VGA. To prove the concept, single-cell, 5-cell, 10-cell and 15-cell reconfigurable VGAs were fabricated in a standard 0.18 μm CMOS technology. The measurement results show that the 10-cell VGA achieves a gain range of 38.6 dB with less than 0.19 dB gain error. The 15-cell VGA can either be used as reconfigurable VGA for analog control voltage or tunable PGA for digital control stream, with the flexibility of scaling gain range, gain error/step and power consumption. For the VGA at highest gain setting, it consumes 1.12 mW and achieves a gain range of 56 dB, gain error less than 0.3 dB.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/118776