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Asynchronous 250 Mbit/s optical receivers with integrated detector in standard CMOS Host Publication: ESSCIRCྟ. Proceedings of the 25th European Solid-State Circuits Conference Authors: C. Rooman, D. Coppée and M. Kuijk Publisher: Editions Frontieres, Neuily sur Seine, France Publication Date: Sep. 1999 Number of Pages: 4 ISBN: 2-86332-246-X
Abstract: A high-speed 10-channel optical receiver integrated in a standard 0.6 ? m CMOS technology is presented. Each data channel consists of a spatially modulated light detector (SML-detector) and a low-offset receiver. The SML-detector has a much higher intrinsic bandwidth than a conventional photodiode junction implemented in standard CMOS. One channel of the ten is sacrificed and used as a reference to define the threshold level for the other channels. The optical receiver can handle up to 250 Mbit/s of noncoded data (including DC) per channel at 20 microW average light input power ( lambda =860 nm). Power dissipation per channel is only 4 mW. When combined with appropriate light emitters, a compact and low-cost optocoupler can be obtained with improved speed performance compared to existing optocouplers
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