A 0.5-V Wideband Amplifier for a 1-MHz CT Complex Delta-Sigma Modulator
This brief presents a fully differential wideband amplifier for 0.5-V supply. The amplifier employs a gate-input two-stage topology and a DC common-mode feedback circuit with a Miller-amplified capacitor for frequency compensation. Designed in a 130-nm triple-well complementary metal-oxide-semicondu...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2009-11, Vol.56 (11), p.805-809 |
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| container_title | IEEE transactions on circuits and systems. II, Express briefs |
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| creator | Xiao-Yong He Kong-Pang Pun Kinget, P. |
| description | This brief presents a fully differential wideband amplifier for 0.5-V supply. The amplifier employs a gate-input two-stage topology and a DC common-mode feedback circuit with a Miller-amplified capacitor for frequency compensation. Designed in a 130-nm triple-well complementary metal-oxide-semiconductor process with regular VT transistors, the amplifier achieves a simulated performance of 51-dB DC open-loop gain, 112-MHz unity gain bandwidth, and 67deg phase margin with a load of 6.5 pF/19.6 kOmega , and consumes 600 muW at 0.5-V supply. The proposed amplifier is incorporated in a continuous-time complex delta-sigma modulator with a 1-MHz signal bandwidth and 64times oversampling ratio. In the simulations, the modulator achieves a 72.5-dB signal-to-noise-plus-distortion ratio and consumes 2.3 mW at 0.5 V. |
| doi_str_mv | 10.1109/TCSII.2009.2029163 |
| format | Article |
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The amplifier employs a gate-input two-stage topology and a DC common-mode feedback circuit with a Miller-amplified capacitor for frequency compensation. Designed in a 130-nm triple-well complementary metal-oxide-semiconductor process with regular VT transistors, the amplifier achieves a simulated performance of 51-dB DC open-loop gain, 112-MHz unity gain bandwidth, and 67deg phase margin with a load of 6.5 pF/19.6 kOmega , and consumes 600 muW at 0.5-V supply. The proposed amplifier is incorporated in a continuous-time complex delta-sigma modulator with a 1-MHz signal bandwidth and 64times oversampling ratio. In the simulations, the modulator achieves a 72.5-dB signal-to-noise-plus-distortion ratio and consumes 2.3 mW at 0.5 V.</description><identifier>ISSN: 1549-7747</identifier><identifier>EISSN: 1558-3791</identifier><identifier>DOI: 10.1109/TCSII.2009.2029163</identifier><identifier>CODEN: ICSPE5</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Amplification ; Amplifiers ; Analog-to-digital conversion ; Bandwidth ; Broadband amplifiers ; Capacitors ; Circuit simulation ; Circuit topology ; CMOS technology ; Consumption ; continuous-time Delta-Sigma modulator ; Delta modulation ; Delta-sigma modulation ; Direct current ; Frequency ; Gain ; Modulators ; Signal to noise ratio ; ultralow-voltage amplifiers ; ultralow-voltage analog circuit design ; Voltage ; Wideband</subject><ispartof>IEEE transactions on circuits and systems. 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(IEEE) 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c423t-afe8d5ba6f27c64ce3c71830ccb21ce1d093bd6b4995c177c2b6ce02db67bfdf3</citedby><cites>FETCH-LOGICAL-c423t-afe8d5ba6f27c64ce3c71830ccb21ce1d093bd6b4995c177c2b6ce02db67bfdf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5280389$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,777,781,793,27905,27906,54739</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5280389$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Xiao-Yong He</creatorcontrib><creatorcontrib>Kong-Pang Pun</creatorcontrib><creatorcontrib>Kinget, P.</creatorcontrib><title>A 0.5-V Wideband Amplifier for a 1-MHz CT Complex Delta-Sigma Modulator</title><title>IEEE transactions on circuits and systems. II, Express briefs</title><addtitle>TCSII</addtitle><description>This brief presents a fully differential wideband amplifier for 0.5-V supply. The amplifier employs a gate-input two-stage topology and a DC common-mode feedback circuit with a Miller-amplified capacitor for frequency compensation. Designed in a 130-nm triple-well complementary metal-oxide-semiconductor process with regular VT transistors, the amplifier achieves a simulated performance of 51-dB DC open-loop gain, 112-MHz unity gain bandwidth, and 67deg phase margin with a load of 6.5 pF/19.6 kOmega , and consumes 600 muW at 0.5-V supply. The proposed amplifier is incorporated in a continuous-time complex delta-sigma modulator with a 1-MHz signal bandwidth and 64times oversampling ratio. In the simulations, the modulator achieves a 72.5-dB signal-to-noise-plus-distortion ratio and consumes 2.3 mW at 0.5 V.</description><subject>Amplification</subject><subject>Amplifiers</subject><subject>Analog-to-digital conversion</subject><subject>Bandwidth</subject><subject>Broadband amplifiers</subject><subject>Capacitors</subject><subject>Circuit simulation</subject><subject>Circuit topology</subject><subject>CMOS technology</subject><subject>Consumption</subject><subject>continuous-time Delta-Sigma modulator</subject><subject>Delta modulation</subject><subject>Delta-sigma modulation</subject><subject>Direct current</subject><subject>Frequency</subject><subject>Gain</subject><subject>Modulators</subject><subject>Signal to noise ratio</subject><subject>ultralow-voltage amplifiers</subject><subject>ultralow-voltage analog circuit design</subject><subject>Voltage</subject><subject>Wideband</subject><issn>1549-7747</issn><issn>1558-3791</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kT1PwzAQhi0EEqXwB2CxGGBK8Uccx2MVoK3UiqEFRst2HJQqqYudSMCvx6UVAwOLz9I970l3DwCXGI0wRuJuVSxnsxFBSMSHCJzRIzDAjOUJ5QIf7_6pSDhP-Sk4C2GNIoQoGYDJGKIRS17ga11arTYlHLfbpq5q62HlPFQQJ4vpFyxWsHCxYz_gvW06lSzrt1bBhSv7RnXOn4OTSjXBXhzqEDw_PqyKaTJ_msyK8TwxKaFdoiqbl0yrrCLcZKmx1HCcU2SMJthYXCJBdZnpVAhmMOeG6MxYREqdcV2VFR2C2_3crXfvvQ2dbOtgbNOojXV9kDlnKEUkZZG8-ZekGRHxUHkEr_-Aa9f7TdxCCkwoz1PGI0T2kPEuBG8rufV1q_ynxEjuFMgfBXKnQB4UxNDVPlRba38DjOSI5oJ-A-85f7M</recordid><startdate>20091101</startdate><enddate>20091101</enddate><creator>Xiao-Yong He</creator><creator>Kong-Pang Pun</creator><creator>Kinget, P.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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II, Express briefs</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Xiao-Yong He</au><au>Kong-Pang Pun</au><au>Kinget, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A 0.5-V Wideband Amplifier for a 1-MHz CT Complex Delta-Sigma Modulator</atitle><jtitle>IEEE transactions on circuits and systems. II, Express briefs</jtitle><stitle>TCSII</stitle><date>2009-11-01</date><risdate>2009</risdate><volume>56</volume><issue>11</issue><spage>805</spage><epage>809</epage><pages>805-809</pages><issn>1549-7747</issn><eissn>1558-3791</eissn><coden>ICSPE5</coden><abstract>This brief presents a fully differential wideband amplifier for 0.5-V supply. The amplifier employs a gate-input two-stage topology and a DC common-mode feedback circuit with a Miller-amplified capacitor for frequency compensation. Designed in a 130-nm triple-well complementary metal-oxide-semiconductor process with regular VT transistors, the amplifier achieves a simulated performance of 51-dB DC open-loop gain, 112-MHz unity gain bandwidth, and 67deg phase margin with a load of 6.5 pF/19.6 kOmega , and consumes 600 muW at 0.5-V supply. The proposed amplifier is incorporated in a continuous-time complex delta-sigma modulator with a 1-MHz signal bandwidth and 64times oversampling ratio. In the simulations, the modulator achieves a 72.5-dB signal-to-noise-plus-distortion ratio and consumes 2.3 mW at 0.5 V.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TCSII.2009.2029163</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 1549-7747 |
| ispartof | IEEE transactions on circuits and systems. II, Express briefs, 2009-11, Vol.56 (11), p.805-809 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Amplification Amplifiers Analog-to-digital conversion Bandwidth Broadband amplifiers Capacitors Circuit simulation Circuit topology CMOS technology Consumption continuous-time Delta-Sigma modulator Delta modulation Delta-sigma modulation Direct current Frequency Gain Modulators Signal to noise ratio ultralow-voltage amplifiers ultralow-voltage analog circuit design Voltage Wideband |
| title | A 0.5-V Wideband Amplifier for a 1-MHz CT Complex Delta-Sigma Modulator |
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