An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application
Abstract This letter proposes a reconfigurable bandpass noise‐shaping successive approximation register analog‐to‐digital converter (ADC) with a cascade of integrators with feedforward (CIFF) structure. Unlike conventional CIFF structures that use a passive feedforward path, the new design incorpora...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-09-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12947 |
| _version_ | 1797673907156680704 |
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| author | Jonghyun Kim Younggyun Oh Hyungil Chae |
| author_facet | Jonghyun Kim Younggyun Oh Hyungil Chae |
| author_sort | Jonghyun Kim |
| collection | DOAJ |
| description | Abstract This letter proposes a reconfigurable bandpass noise‐shaping successive approximation register analog‐to‐digital converter (ADC) with a cascade of integrators with feedforward (CIFF) structure. Unlike conventional CIFF structures that use a passive feedforward path, the new design incorporates an amplifier within the filter, providing effective bandpass noise transfer function regardless of passband location, and facilitating the use of a unity gain 2‐input comparator for low noise and high stability. The loop filter includes amplification by a low power Gm‐R amplifier and two‐step charge sharing. The proposed ADC supports three different intermediate frequencies (IFs), and 12‐bit resolution is achieved for all IFs in a 28‐nm complementary metal‐oxide‐semiconductor (CMOS) process. |
| first_indexed | 2024-03-11T21:51:14Z |
| format | Article |
| id | doaj.art-2f4ed27a7fd5456c8dff0706bce874ea |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-03-11T21:51:14Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-2f4ed27a7fd5456c8dff0706bce874ea2023-09-26T08:10:29ZengWileyElectronics Letters0013-51941350-911X2023-09-015918n/an/a10.1049/ell2.12947An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile applicationJonghyun Kim0Younggyun Oh1Hyungil Chae2Department of Electrical and Electronics Engineering Konkuk University Seoul South KoreaSamsung Electronics Hwaseong South KoreaDepartment of Electrical and Electronics Engineering Konkuk University Seoul South KoreaAbstract This letter proposes a reconfigurable bandpass noise‐shaping successive approximation register analog‐to‐digital converter (ADC) with a cascade of integrators with feedforward (CIFF) structure. Unlike conventional CIFF structures that use a passive feedforward path, the new design incorporates an amplifier within the filter, providing effective bandpass noise transfer function regardless of passband location, and facilitating the use of a unity gain 2‐input comparator for low noise and high stability. The loop filter includes amplification by a low power Gm‐R amplifier and two‐step charge sharing. The proposed ADC supports three different intermediate frequencies (IFs), and 12‐bit resolution is achieved for all IFs in a 28‐nm complementary metal‐oxide‐semiconductor (CMOS) process.https://doi.org/10.1049/ell2.129474G mobile communication5G mobile communicationanalogue–digital conversiondelta‐sigma modulation |
| spellingShingle | Jonghyun Kim Younggyun Oh Hyungil Chae An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application Electronics Letters 4G mobile communication 5G mobile communication analogue–digital conversion delta‐sigma modulation |
| title | An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application |
| title_full | An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application |
| title_fullStr | An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application |
| title_full_unstemmed | An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application |
| title_short | An intermediate frequency reconfigurable bandpass noise‐shaping SAR ADC for IoT and mobile application |
| title_sort | intermediate frequency reconfigurable bandpass noise shaping sar adc for iot and mobile application |
| topic | 4G mobile communication 5G mobile communication analogue–digital conversion delta‐sigma modulation |
| url | https://doi.org/10.1049/ell2.12947 |
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