Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141113
Title: A wideband inductorless dB-linear automatic gain control amplifier using a single-branch negative exponential generator for wireline applications
Authors: Kong, Lingshan
Chen, Yong
Boon, Chirn Chye
Mak, Pui-In
Martins, Rui P.
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: 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
Project: Delta-NTU
Journal: IEEE Transactions on Circuits and Systems I: Regular Papers
Abstract: 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.
URI: https://hdl.handle.net/10356/141113
ISSN: 1549-8328
DOI: 10.1109/TCSI.2018.2827065
Rights: © 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
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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