A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications
This paper reports a wideband inductorless automatic gain control (AGC) amplifier for wireline applications. To realize a dB-linear AGC range, a pseudo-folded Gilbert cell driven by a single-branch negative exponential generator (NEG) is proposed as the core variable-gain amplifier. The NEG features...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/141113 |
| _version_ | 1811691861049344000 |
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| author | Kong, Lingshan Chen, Yong Boon, Chirn Chye Mak, Pui-In Martins, Rui P. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Kong, Lingshan Chen, Yong Boon, Chirn Chye Mak, Pui-In Martins, Rui P. |
| author_sort | Kong, Lingshan |
| collection | NTU |
| description | This paper reports a wideband inductorless automatic gain control (AGC) amplifier for wireline applications. To realize a dB-linear AGC range, a pseudo-folded Gilbert cell driven by a single-branch negative exponential generator (NEG) is proposed as the core variable-gain amplifier. The NEG features a composite of dual Taylor series to extend the AGC approximation range without sacrificing the precision. Fabricated in 65-nm CMOS, the AGC amplifier occupies a tiny die area of 0.045 mm 2 and consumes 28 mW at 1.2 V. Measured over a dB-linear gain range of ~40 dB, <; ± 1 dB gain error is achieved and the 3-dB bandwidth stays roughly constant at 7 GHz. For the closed-loop AGC measurement, the input dynamic range is ~40 dB (10 mVpp to 1 Vpp) for a BER <;10 -12 under a 2 7 - 1 PRBS data at 10 Gb/s. The achieved figure-of-merit (FOM) of 2.8 pJ/bit compares favorably with state-of-the-art. |
| first_indexed | 2024-10-01T06:26:37Z |
| format | Journal Article |
| id | ntu-10356/141113 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:26:37Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1411132020-07-07T00:57:10Z A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications Kong, Lingshan Chen, Yong Boon, Chirn Chye Mak, Pui-In Martins, Rui P. School of Electrical and Electronic Engineering Delta-NTU Corp Labs Engineering::Electrical and electronic engineering Automatic Gain Control (AGC) Amplifier Negative Exponential Generator (NEG) This paper reports a wideband inductorless automatic gain control (AGC) amplifier for wireline applications. To realize a dB-linear AGC range, a pseudo-folded Gilbert cell driven by a single-branch negative exponential generator (NEG) is proposed as the core variable-gain amplifier. The NEG features a composite of dual Taylor series to extend the AGC approximation range without sacrificing the precision. Fabricated in 65-nm CMOS, the AGC amplifier occupies a tiny die area of 0.045 mm 2 and consumes 28 mW at 1.2 V. Measured over a dB-linear gain range of ~40 dB, <; ± 1 dB gain error is achieved and the 3-dB bandwidth stays roughly constant at 7 GHz. For the closed-loop AGC measurement, the input dynamic range is ~40 dB (10 mVpp to 1 Vpp) for a BER <;10 -12 under a 2 7 - 1 PRBS data at 10 Gb/s. The achieved figure-of-merit (FOM) of 2.8 pJ/bit compares favorably with state-of-the-art. NRF (Natl Research Foundation, S’pore) Accepted version 2020-06-04T03:45:35Z 2020-06-04T03:45:35Z 2018 Journal Article Kong, L., Chen, Y., Boon, C. C., Mak, P.-I., & Martins, R. P. (2018). A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications. IEEE Transactions on Circuits and Systems I: Regular Papers, 65(10), 3196-3206. doi:10.1109/TCSI.2018.2827065 1549-8328 https://hdl.handle.net/10356/141113 10.1109/TCSI.2018.2827065 2-s2.0-85046347884 10 65 3196 3206 en Delta-NTU IEEE Transactions on Circuits and Systems I: Regular Papers © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TCSI.2018.2827065 application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Automatic Gain Control (AGC) Amplifier Negative Exponential Generator (NEG) Kong, Lingshan Chen, Yong Boon, Chirn Chye Mak, Pui-In Martins, Rui P. A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title | A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title_full | A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title_fullStr | A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title_full_unstemmed | A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title_short | A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications |
| title_sort | wideband inductorless db linear automatic gain control amplifier using a single branch negative exponential generator for wireline applications |
| topic | Engineering::Electrical and electronic engineering Automatic Gain Control (AGC) Amplifier Negative Exponential Generator (NEG) |
| url | https://hdl.handle.net/10356/141113 |
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