A Dynamic Dither Gain Control Technique for Multi-Level Delta-Sigma DACs with Multi-Stage Second Order Dynamic Element Matching
A dynamic dither gain control technique for multi-level delta-sigma Digital-to-Analog Converters (DACs) using multi-stage Dynamic Element Matching (DEM) with a second order loop filter is proposed. The proposed technique provides improvement on the mismatch shaping performance through dynamic contro...
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Veröffentlicht in: | IEICE Transactions on Electronics 2011/03/01, Vol.E94.C(3), pp.346-352 |
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creator | TAMURA, Yu IDO, Toru TANIGUCHI, Kenji |
description | A dynamic dither gain control technique for multi-level delta-sigma Digital-to-Analog Converters (DACs) using multi-stage Dynamic Element Matching (DEM) with a second order loop filter is proposed. The proposed technique provides improvement on the mismatch shaping performance through dynamic control of delta-sigma modulator dither gain. A large dither gain, which suppresses DEM operation dependency on input signal, is applied to delta-sigma modulator, when DEM loop filter output is greater than a designed reference. The design example using the proposed technique on a third order 17-level delta-sigma modulator with 3-stage cascaded DEM is shown in this paper. Simulation result with 1% analog segment mismatch shows over 10dB improvement of THD+N performance under -50dB amplitude input signal, compared to the case without the proposed technique. |
doi_str_mv | 10.1587/transele.E94.C.346 |
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The proposed technique provides improvement on the mismatch shaping performance through dynamic control of delta-sigma modulator dither gain. A large dither gain, which suppresses DEM operation dependency on input signal, is applied to delta-sigma modulator, when DEM loop filter output is greater than a designed reference. The design example using the proposed technique on a third order 17-level delta-sigma modulator with 3-stage cascaded DEM is shown in this paper. Simulation result with 1% analog segment mismatch shows over 10dB improvement of THD+N performance under -50dB amplitude input signal, compared to the case without the proposed technique.</description><identifier>ISSN: 0916-8524</identifier><identifier>EISSN: 1745-1353</identifier><identifier>DOI: 10.1587/transele.E94.C.346</identifier><language>eng</language><publisher>Oxford: The Institute of Electronics, Information and Communication Engineers</publisher><subject>Applied sciences ; Circuit properties ; delta-sigma digital-to-analog converter ; Discrete element method ; dither control ; Dithers ; Dynamic control ; dynamic element matching ; Dynamics ; Electric, optical and optoelectronic circuits ; Electronic circuits ; Electronics ; Exact sciences and technology ; Gain ; Matching ; Modulators ; Segments ; Signal convertors</subject><ispartof>IEICE Transactions on Electronics, 2011/03/01, Vol.E94.C(3), pp.346-352</ispartof><rights>2011 The Institute of Electronics, Information and Communication Engineers</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c393t-724f78258f017da6b15a3f4a3b691aad6b89dcef6b3df7ad4a52637163dfb143</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1881,4022,27922,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24113900$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>TAMURA, Yu</creatorcontrib><creatorcontrib>IDO, Toru</creatorcontrib><creatorcontrib>TANIGUCHI, Kenji</creatorcontrib><title>A Dynamic Dither Gain Control Technique for Multi-Level Delta-Sigma DACs with Multi-Stage Second Order Dynamic Element Matching</title><title>IEICE Transactions on Electronics</title><addtitle>IEICE Trans. Electron.</addtitle><description>A dynamic dither gain control technique for multi-level delta-sigma Digital-to-Analog Converters (DACs) using multi-stage Dynamic Element Matching (DEM) with a second order loop filter is proposed. The proposed technique provides improvement on the mismatch shaping performance through dynamic control of delta-sigma modulator dither gain. A large dither gain, which suppresses DEM operation dependency on input signal, is applied to delta-sigma modulator, when DEM loop filter output is greater than a designed reference. The design example using the proposed technique on a third order 17-level delta-sigma modulator with 3-stage cascaded DEM is shown in this paper. Simulation result with 1% analog segment mismatch shows over 10dB improvement of THD+N performance under -50dB amplitude input signal, compared to the case without the proposed technique.</description><subject>Applied sciences</subject><subject>Circuit properties</subject><subject>delta-sigma digital-to-analog converter</subject><subject>Discrete element method</subject><subject>dither control</subject><subject>Dithers</subject><subject>Dynamic control</subject><subject>dynamic element matching</subject><subject>Dynamics</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Gain</subject><subject>Matching</subject><subject>Modulators</subject><subject>Segments</subject><subject>Signal convertors</subject><issn>0916-8524</issn><issn>1745-1353</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNpdkMGO0zAQhi0EEmXhBTj5gjilxLFjJ8cqLQuoqz20d2viTFqvHGexXVZ74tXxqt0eOI1G-v5_NB8hn1m5ZHWjvqUAPqLD5aYVy27JhXxDFkyJumC85m_JomyZLJq6Eu_JhxgfypI1FeML8ndF188eJmvo2qYjBnoL1tNu9inMju7RHL39fUI6zoHenVyyxRb_oKNrdAmKnT1MQNerLtKnHL8QuwQHpDs0sx_ofRhy6-uRjcMJfaJ3kMzR-sNH8m4EF_HTZd6Q_ffNvvtRbO9vf3arbWF4y1OhKjGqpqqbsWRqANmzGvgogPeyZQCD7Jt2MDjKng-jgkFAXUmumMxrzwS_IV_PtY9hzt_EpCcbDToHHudT1I0UgjOl6kxWZ9KEOcaAo34MdoLwrFmpX1zrV9c6u9adzq5z6MulHqIBN2bC2HhNVoIx3pZl5n6duYf4ougKQEjW5Mb_q68zH7lC5ghBo-f_AGDbnYA</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>TAMURA, Yu</creator><creator>IDO, Toru</creator><creator>TANIGUCHI, Kenji</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>2011</creationdate><title>A Dynamic Dither Gain Control Technique for Multi-Level Delta-Sigma DACs with Multi-Stage Second Order Dynamic Element Matching</title><author>TAMURA, Yu ; IDO, Toru ; TANIGUCHI, Kenji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-724f78258f017da6b15a3f4a3b691aad6b89dcef6b3df7ad4a52637163dfb143</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Circuit properties</topic><topic>delta-sigma digital-to-analog converter</topic><topic>Discrete element method</topic><topic>dither control</topic><topic>Dithers</topic><topic>Dynamic control</topic><topic>dynamic element matching</topic><topic>Dynamics</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic circuits</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Gain</topic><topic>Matching</topic><topic>Modulators</topic><topic>Segments</topic><topic>Signal convertors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TAMURA, Yu</creatorcontrib><creatorcontrib>IDO, Toru</creatorcontrib><creatorcontrib>TANIGUCHI, Kenji</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>TAMURA, Yu</au><au>IDO, Toru</au><au>TANIGUCHI, Kenji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Dynamic Dither Gain Control Technique for Multi-Level Delta-Sigma DACs with Multi-Stage Second Order Dynamic Element Matching</atitle><jtitle>IEICE Transactions on Electronics</jtitle><addtitle>IEICE Trans. Electron.</addtitle><date>2011</date><risdate>2011</risdate><volume>E94.C</volume><issue>3</issue><spage>346</spage><epage>352</epage><pages>346-352</pages><issn>0916-8524</issn><eissn>1745-1353</eissn><abstract>A dynamic dither gain control technique for multi-level delta-sigma Digital-to-Analog Converters (DACs) using multi-stage Dynamic Element Matching (DEM) with a second order loop filter is proposed. The proposed technique provides improvement on the mismatch shaping performance through dynamic control of delta-sigma modulator dither gain. A large dither gain, which suppresses DEM operation dependency on input signal, is applied to delta-sigma modulator, when DEM loop filter output is greater than a designed reference. The design example using the proposed technique on a third order 17-level delta-sigma modulator with 3-stage cascaded DEM is shown in this paper. Simulation result with 1% analog segment mismatch shows over 10dB improvement of THD+N performance under -50dB amplitude input signal, compared to the case without the proposed technique.</abstract><cop>Oxford</cop><pub>The Institute of Electronics, Information and Communication Engineers</pub><doi>10.1587/transele.E94.C.346</doi><tpages>7</tpages></addata></record> |
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subjects | Applied sciences Circuit properties delta-sigma digital-to-analog converter Discrete element method dither control Dithers Dynamic control dynamic element matching Dynamics Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Gain Matching Modulators Segments Signal convertors |
title | A Dynamic Dither Gain Control Technique for Multi-Level Delta-Sigma DACs with Multi-Stage Second Order Dynamic Element Matching |
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