Asynchronous 250-Mb/s optical receivers with integrated detector in standard CMOS technology for optocoupler applications

Autor: Maarten Kuijk, Daniel Coppee, C. Rooman
Rok vydání: 2000
Předmět:
Zdroj: IEEE Journal of Solid-State Circuits. 35:953-958
ISSN: 1558-173X
0018-9200
DOI: 10.1109/4.848203
Popis: A high-speed ten-channel optical receiver, integrated in a standard 0.6-/spl mu/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 Mb/s of noncoded data (including dc) per channel at 20 /spl mu/W average light input power (/spl 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.
Databáze: OpenAIRE