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28 May 2009 0.18μm CMOS inductorless AGC amplifier with 50dB input dynamic range for 10GBase-LX4 ethernet
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Proceedings Volume 7363, VLSI Circuits and Systems IV; 73630T (2009) https://doi.org/10.1117/12.821447
Event: SPIE Europe Microtechnologies for the New Millennium, 2009, Dresden, Germany
Abstract
This paper presents a new automatic gain control main amplifier for 10GBase-LX4 Ethernet realized in a 0.18 μm CMOS process. The proposed optical-fiber differential post-amplifier is based on a very compact inductorless design which comprises three main digitally programmable gain stages followed by a buffer. It is characterized by a -3 dB cutoff frequency above 3 GHz over a -3 to 33 dB linear-in-dB gain control. It includes a DC offset cancellation network and an automatic gain control loop which establishes a setting time below 1μs. Results show a sensitivity of 2.1 mV for BER = 10-12 and an input dynamic range above 50 dB. The power consumption is 58 mW at a single supply voltage of 1.8 V.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Aznar, S. Celma, B. Calvo, and C. Aldea "0.18μm CMOS inductorless AGC amplifier with 50dB input dynamic range for 10GBase-LX4 ethernet", Proc. SPIE 7363, VLSI Circuits and Systems IV, 73630T (28 May 2009); https://doi.org/10.1117/12.821447
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