All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers
Two variable gain amplifiers (VGAs) that adopt new approximated exponential equations are proposed in this paper. The dB-linear range of the proposed VGAs is extended more than what the approximated exponential equations predict by a bias circuit technique that adopts negative feedback. The proposed...
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| Veröffentlicht in: | IEICE Transactions on Electronics 2008/05/01, Vol.E91.C(5), pp.788-797 |
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| creator | DUONG, Quoc-Hoang KIM, Chang-Wan LEE, Sang-Gug |
| description | Two variable gain amplifiers (VGAs) that adopt new approximated exponential equations are proposed in this paper. The dB-linear range of the proposed VGAs is extended more than what the approximated exponential equations predict by a bias circuit technique that adopts negative feedback. The proposed VGAs feature wide gain variation, low-power, high linearity, wide control signal range, and small chip size. One of the proposed VGAs is fabricated in 0.18μm CMOS technology and measurements show a gain variation of 83dB (-36-47dB) with a gain error of less than ±2dB, and P1dB/IIP3 from -55/8 to -20/20.5dBm, while consuming an average current of 3.4mA from a 1.8V supply; the chip occupies 0.4mm2. The other VGA is simulated in 0.18μm CMOS technology and simulations show a gain variation of 91dB (-41-50dB), and P1dB/IIP3 from -50/-25 to -33/0dBm, while consuming an average current of 1.5mA from a 1.8V supply. |
| doi_str_mv | 10.1093/ietele/e91-c.5.788 |
| format | Article |
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The dB-linear range of the proposed VGAs is extended more than what the approximated exponential equations predict by a bias circuit technique that adopts negative feedback. The proposed VGAs feature wide gain variation, low-power, high linearity, wide control signal range, and small chip size. One of the proposed VGAs is fabricated in 0.18μm CMOS technology and measurements show a gain variation of 83dB (-36-47dB) with a gain error of less than ±2dB, and P1dB/IIP3 from -55/8 to -20/20.5dBm, while consuming an average current of 3.4mA from a 1.8V supply; the chip occupies 0.4mm2. The other VGA is simulated in 0.18μm CMOS technology and simulations show a gain variation of 91dB (-41-50dB), and P1dB/IIP3 from -50/-25 to -33/0dBm, while consuming an average current of 1.5mA from a 1.8V supply.</description><identifier>ISSN: 0916-8524</identifier><identifier>ISSN: 1745-1353</identifier><identifier>EISSN: 1745-1353</identifier><identifier>DOI: 10.1093/ietele/e91-c.5.788</identifier><language>eng</language><publisher>Oxford: The Institute of Electronics, Information and Communication Engineers</publisher><subject>amplifier ; Amplifiers ; Applied sciences ; Approximation ; automatic gain control (AGC) ; Chips ; Circuit properties ; CMOS ; Design. Technologies. Operation analysis. Testing ; Electric, optical and optoelectronic circuits ; Electronic circuits ; Electronics ; Exact sciences and technology ; Exponential equations ; Gain ; Integrated circuits ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Simulation ; transceiver ; Variable gain ; variable gain amplifier (VGA)</subject><ispartof>IEICE Transactions on Electronics, 2008/05/01, Vol.E91.C(5), pp.788-797</ispartof><rights>2008 The Institute of Electronics, Information and Communication Engineers</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20358277$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>DUONG, Quoc-Hoang</creatorcontrib><creatorcontrib>KIM, Chang-Wan</creatorcontrib><creatorcontrib>LEE, Sang-Gug</creatorcontrib><title>All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers</title><title>IEICE Transactions on Electronics</title><addtitle>IEICE Trans. Electron.</addtitle><description>Two variable gain amplifiers (VGAs) that adopt new approximated exponential equations are proposed in this paper. The dB-linear range of the proposed VGAs is extended more than what the approximated exponential equations predict by a bias circuit technique that adopts negative feedback. The proposed VGAs feature wide gain variation, low-power, high linearity, wide control signal range, and small chip size. One of the proposed VGAs is fabricated in 0.18μm CMOS technology and measurements show a gain variation of 83dB (-36-47dB) with a gain error of less than ±2dB, and P1dB/IIP3 from -55/8 to -20/20.5dBm, while consuming an average current of 3.4mA from a 1.8V supply; the chip occupies 0.4mm2. The other VGA is simulated in 0.18μm CMOS technology and simulations show a gain variation of 91dB (-41-50dB), and P1dB/IIP3 from -50/-25 to -33/0dBm, while consuming an average current of 1.5mA from a 1.8V supply.</description><subject>amplifier</subject><subject>Amplifiers</subject><subject>Applied sciences</subject><subject>Approximation</subject><subject>automatic gain control (AGC)</subject><subject>Chips</subject><subject>Circuit properties</subject><subject>CMOS</subject><subject>Design. Technologies. Operation analysis. Testing</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Exponential equations</subject><subject>Gain</subject><subject>Integrated circuits</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Simulation</subject><subject>transceiver</subject><subject>Variable gain</subject><subject>variable gain amplifier (VGA)</subject><issn>0916-8524</issn><issn>1745-1353</issn><issn>1745-1353</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo9kMtKAzEYRoMoWKsv4Go24mraXCcJrsqgValUvC5DmmZqSjpTkynFtzd1alc_hHNO4APgEsEBgpIMnW2tt0MrUW4GbMCFOAI9xCnLEWHkGPSgREUuGKan4CzGJYRIYER64GbkfVY-TV-zSbPNn5utDdmnm9t8rF2dveh6YbMPHZyeeZv9vY1Wa-8qZ0M8ByeV9tFe7G8fvN_dvpX3-WQ6fihHk9xQSdtczo1BjBiEKUWcI41lgWcFl0TPdVGwaoYJlrTghLMkEFhIQiHlWIoEC0b64LrrrkPzvbGxVSsXjfVe17bZRCV2FudUJhJ3pAlNjMFWah3cSocfhaDaDaW6oVQaShnFVBoqSVf7vI5G-yro2rh4MDEkTGDOE_fYccvY6oU9ADq0zqRmm8S4i9-meJni_zd9coDMlw7K1uQXkwqB-Q</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>DUONG, Quoc-Hoang</creator><creator>KIM, Chang-Wan</creator><creator>LEE, Sang-Gug</creator><general>The Institute of Electronics, Information and Communication Engineers</general><general>Oxford University Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>2008</creationdate><title>All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers</title><author>DUONG, Quoc-Hoang ; KIM, Chang-Wan ; LEE, Sang-Gug</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c494t-9dcc153c12441771a2962b6793ada665fb232946737549430693404729871a853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>amplifier</topic><topic>Amplifiers</topic><topic>Applied sciences</topic><topic>Approximation</topic><topic>automatic gain control (AGC)</topic><topic>Chips</topic><topic>Circuit properties</topic><topic>CMOS</topic><topic>Design. Technologies. Operation analysis. Testing</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic circuits</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Exponential equations</topic><topic>Gain</topic><topic>Integrated circuits</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>Simulation</topic><topic>transceiver</topic><topic>Variable gain</topic><topic>variable gain amplifier (VGA)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DUONG, Quoc-Hoang</creatorcontrib><creatorcontrib>KIM, Chang-Wan</creatorcontrib><creatorcontrib>LEE, Sang-Gug</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEICE Transactions on Electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DUONG, Quoc-Hoang</au><au>KIM, Chang-Wan</au><au>LEE, Sang-Gug</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers</atitle><jtitle>IEICE Transactions on Electronics</jtitle><addtitle>IEICE Trans. Electron.</addtitle><date>2008</date><risdate>2008</risdate><volume>E91.C</volume><issue>5</issue><spage>788</spage><epage>797</epage><pages>788-797</pages><issn>0916-8524</issn><issn>1745-1353</issn><eissn>1745-1353</eissn><abstract>Two variable gain amplifiers (VGAs) that adopt new approximated exponential equations are proposed in this paper. The dB-linear range of the proposed VGAs is extended more than what the approximated exponential equations predict by a bias circuit technique that adopts negative feedback. The proposed VGAs feature wide gain variation, low-power, high linearity, wide control signal range, and small chip size. One of the proposed VGAs is fabricated in 0.18μm CMOS technology and measurements show a gain variation of 83dB (-36-47dB) with a gain error of less than ±2dB, and P1dB/IIP3 from -55/8 to -20/20.5dBm, while consuming an average current of 3.4mA from a 1.8V supply; the chip occupies 0.4mm2. The other VGA is simulated in 0.18μm CMOS technology and simulations show a gain variation of 91dB (-41-50dB), and P1dB/IIP3 from -50/-25 to -33/0dBm, while consuming an average current of 1.5mA from a 1.8V supply.</abstract><cop>Oxford</cop><pub>The Institute of Electronics, Information and Communication Engineers</pub><doi>10.1093/ietele/e91-c.5.788</doi><tpages>10</tpages></addata></record> |
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| subjects | amplifier Amplifiers Applied sciences Approximation automatic gain control (AGC) Chips Circuit properties CMOS Design. Technologies. Operation analysis. Testing Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Exponential equations Gain Integrated circuits Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Simulation transceiver Variable gain variable gain amplifier (VGA) |
| title | All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers |
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