An all CMOS 84dB-linear low-power variable gain amplifier
A new exponential approximation function is implemented into a variable gain amplifier (VGA). The newly proposed VGA topology provides low-power, small chip size, and wide control gain range. The VGA is fabricated in 0.18/spl mu/m CMOS technology and measurements show a gain variation of more than 8...
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| creator | Quoc-Hoang Duong Le-Quan Sang-Gug Lee |
| description | A new exponential approximation function is implemented into a variable gain amplifier (VGA). The newly proposed VGA topology provides low-power, small chip size, and wide control gain range. The VGA is fabricated in 0.18/spl mu/m CMOS technology and measurements show a gain variation of more than 84dB in two cascaded stages, and 80dB-linear range with a linearity error of less than /spl plusmn/1dB. The PldB varies from -42dBm to -22dBm. The power dissipation is less than 3.6mA from 1.8V supply. The chip excluding bondpads occupies 0.4mm/sup 2/. |
| doi_str_mv | 10.1109/VLSIC.2005.1469346 |
| format | Conference Proceeding |
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The newly proposed VGA topology provides low-power, small chip size, and wide control gain range. The VGA is fabricated in 0.18/spl mu/m CMOS technology and measurements show a gain variation of more than 84dB in two cascaded stages, and 80dB-linear range with a linearity error of less than /spl plusmn/1dB. The PldB varies from -42dBm to -22dBm. The power dissipation is less than 3.6mA from 1.8V supply. 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The newly proposed VGA topology provides low-power, small chip size, and wide control gain range. The VGA is fabricated in 0.18/spl mu/m CMOS technology and measurements show a gain variation of more than 84dB in two cascaded stages, and 80dB-linear range with a linearity error of less than /spl plusmn/1dB. The PldB varies from -42dBm to -22dBm. The power dissipation is less than 3.6mA from 1.8V supply. The chip excluding bondpads occupies 0.4mm/sup 2/.</description><subject>Circuits</subject><subject>CMOS technology</subject><subject>Dynamic range</subject><subject>Gain control</subject><subject>Linearity</subject><subject>Medical control systems</subject><subject>Power dissipation</subject><subject>Taylor series</subject><subject>Telecommunication control</subject><subject>Topology</subject><issn>2158-5601</issn><issn>2158-5636</issn><isbn>490078401X</isbn><isbn>9784900784017</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2005</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNo9j81Kw0AURgd_wLb6ArqZF5h47_xmljVYLUS6aBF3ZZK5kZFpGxKx-PYKFlff4hwOfIzdIhSI4O9f6_WyKiSAKVBbr7Q9YxOJphTGKnvOptoDuFIDvl38A8ArNh3HDwBpUJoJ8_M9Dznz6mW15qWODyKnPYWB58NR9IcjDfwrDCk0mfh7SL_yrs-pSzRcs8su5JFuTjtjm8XjpnoW9eppWc1rkdCZT6GtiVEh2UixNdgE9E7HQK6NNkpbaorBWkMGIXYRW2hk67zyunFWxlLN2N1fNhHRth_SLgzf29Nj9QMsVkd0</recordid><startdate>2005</startdate><enddate>2005</enddate><creator>Quoc-Hoang Duong</creator><creator>Le-Quan</creator><creator>Sang-Gug Lee</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>2005</creationdate><title>An all CMOS 84dB-linear low-power variable gain amplifier</title><author>Quoc-Hoang Duong ; Le-Quan ; Sang-Gug Lee</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-465dd31e6dedc51ba1974dae7cd6d2684eda665e510dfd1c0b2c79394b762d83</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Circuits</topic><topic>CMOS technology</topic><topic>Dynamic range</topic><topic>Gain control</topic><topic>Linearity</topic><topic>Medical control systems</topic><topic>Power dissipation</topic><topic>Taylor series</topic><topic>Telecommunication control</topic><topic>Topology</topic><toplevel>online_resources</toplevel><creatorcontrib>Quoc-Hoang Duong</creatorcontrib><creatorcontrib>Le-Quan</creatorcontrib><creatorcontrib>Sang-Gug Lee</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Quoc-Hoang Duong</au><au>Le-Quan</au><au>Sang-Gug Lee</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>An all CMOS 84dB-linear low-power variable gain amplifier</atitle><btitle>Digest of Technical Papers. 2005 Symposium on VLSI Circuits, 2005</btitle><stitle>VLSIC</stitle><date>2005</date><risdate>2005</risdate><spage>114</spage><epage>117</epage><pages>114-117</pages><issn>2158-5601</issn><eissn>2158-5636</eissn><isbn>490078401X</isbn><isbn>9784900784017</isbn><abstract>A new exponential approximation function is implemented into a variable gain amplifier (VGA). The newly proposed VGA topology provides low-power, small chip size, and wide control gain range. The VGA is fabricated in 0.18/spl mu/m CMOS technology and measurements show a gain variation of more than 84dB in two cascaded stages, and 80dB-linear range with a linearity error of less than /spl plusmn/1dB. The PldB varies from -42dBm to -22dBm. The power dissipation is less than 3.6mA from 1.8V supply. The chip excluding bondpads occupies 0.4mm/sup 2/.</abstract><pub>IEEE</pub><doi>10.1109/VLSIC.2005.1469346</doi><tpages>4</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Circuits CMOS technology Dynamic range Gain control Linearity Medical control systems Power dissipation Taylor series Telecommunication control Topology |
| title | An all CMOS 84dB-linear low-power variable gain amplifier |
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