Characterization of a superconductive sigma-delta analog to digital converter
Sigma-delta analog to digital converters (ADCs) use a combination of oversampling and feedback to concentrate quantization noise outside the frequency band of interest. Subsequent digital filtering can then be used to suppress the quantization noise and yield a large signal to noise ratio. Sigma-del...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 1995-06, Vol.5 (2), p.2453-2456 |
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| container_end_page | 2456 |
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| container_issue | 2 |
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| container_title | IEEE transactions on applied superconductivity |
| container_volume | 5 |
| creator | Miller, D.L. Przybysz, J.X. Meier, D.L. Joonhee Kang Worsham, A.H. |
| description | Sigma-delta analog to digital converters (ADCs) use a combination of oversampling and feedback to concentrate quantization noise outside the frequency band of interest. Subsequent digital filtering can then be used to suppress the quantization noise and yield a large signal to noise ratio. Sigma-delta ADCs dominate the high performance audio market, where the signal band is limited to frequencies below 50 kHz and 8 octave oversampling requires a sampling rate of only 25.6 MHz. Przybysz et al. have described a superconductive circuit capable of >40 GHz sampling, thereby extending the useful bandwith to tens of MHz. In this paper, we describe the realization of that circuit and present measurements of its performance. Spectral analysis of the modulator performance shows spur-free dynamic range of over 78 dB and third order intermodulation products less than -68 dBc. Quantization noise shaping is also demonstrated.< > |
| doi_str_mv | 10.1109/77.403087 |
| format | Article |
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Subsequent digital filtering can then be used to suppress the quantization noise and yield a large signal to noise ratio. Sigma-delta ADCs dominate the high performance audio market, where the signal band is limited to frequencies below 50 kHz and 8 octave oversampling requires a sampling rate of only 25.6 MHz. Przybysz et al. have described a superconductive circuit capable of >40 GHz sampling, thereby extending the useful bandwith to tens of MHz. In this paper, we describe the realization of that circuit and present measurements of its performance. Spectral analysis of the modulator performance shows spur-free dynamic range of over 78 dB and third order intermodulation products less than -68 dBc. 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Quantization noise shaping is also demonstrated.< ></description><subject>Analog-digital conversion</subject><subject>Circuits</subject><subject>Delta-sigma modulation</subject><subject>Feedback</subject><subject>Frequency conversion</subject><subject>Quantization</subject><subject>Sampling methods</subject><subject>Signal to noise ratio</subject><subject>Superconducting device noise</subject><subject>Superconductivity</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqF0LFOwzAQBmALgUQpDKxMnpAYUnxxHDsjqiggFbHAHF0cpxilcbGdSvD0GKViZbqT7tPp7ifkEtgCgFW3Ui4KxpmSR2QGQqgsFyCOU88EZCrP-Sk5C-GDMShUIWbkefmOHnU03n5jtG6grqNIw7gzXruhHXW0e0OD3Wwxa00fkeKAvdvQ6GhrNzZiTxPcG592nJOTDvtgLg51Tt5W96_Lx2z98vC0vFtnOp0WM6EFygqbkuuiwyZHXZUgJEjOoEJVac6h5dCJttQVk8qIAhvWlK0CqaRkfE6up7077z5HE2K9tUGbvsfBuDHUucpZeo__DyXPi7KEBG8mqL0LwZuu3nm7Rf9VA6t_k62lrKdkk72arDXG_LnD8Afh7HL-</recordid><startdate>19950601</startdate><enddate>19950601</enddate><creator>Miller, D.L.</creator><creator>Przybysz, J.X.</creator><creator>Meier, D.L.</creator><creator>Joonhee Kang</creator><creator>Worsham, A.H.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>19950601</creationdate><title>Characterization of a superconductive sigma-delta analog to digital converter</title><author>Miller, D.L. ; Przybysz, J.X. ; Meier, D.L. ; Joonhee Kang ; Worsham, A.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c308t-5c5a79ab63c4fab2ac96157173019a89c331d31f5d6c9078e54ab0b6d81787703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Analog-digital conversion</topic><topic>Circuits</topic><topic>Delta-sigma modulation</topic><topic>Feedback</topic><topic>Frequency conversion</topic><topic>Quantization</topic><topic>Sampling methods</topic><topic>Signal to noise ratio</topic><topic>Superconducting device noise</topic><topic>Superconductivity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Miller, D.L.</creatorcontrib><creatorcontrib>Przybysz, J.X.</creatorcontrib><creatorcontrib>Meier, D.L.</creatorcontrib><creatorcontrib>Joonhee Kang</creatorcontrib><creatorcontrib>Worsham, A.H.</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>IEEE transactions on applied superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Miller, D.L.</au><au>Przybysz, J.X.</au><au>Meier, D.L.</au><au>Joonhee Kang</au><au>Worsham, A.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of a superconductive sigma-delta analog to digital converter</atitle><jtitle>IEEE transactions on applied superconductivity</jtitle><stitle>TASC</stitle><date>1995-06-01</date><risdate>1995</risdate><volume>5</volume><issue>2</issue><spage>2453</spage><epage>2456</epage><pages>2453-2456</pages><issn>1051-8223</issn><eissn>1558-2515</eissn><coden>ITASE9</coden><abstract>Sigma-delta analog to digital converters (ADCs) use a combination of oversampling and feedback to concentrate quantization noise outside the frequency band of interest. 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| ispartof | IEEE transactions on applied superconductivity, 1995-06, Vol.5 (2), p.2453-2456 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Analog-digital conversion Circuits Delta-sigma modulation Feedback Frequency conversion Quantization Sampling methods Signal to noise ratio Superconducting device noise Superconductivity |
| title | Characterization of a superconductive sigma-delta analog to digital converter |
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