28 Gbit/s selector IC using AlGaAs/GaAs HBTs
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An ultra-high-speed selector IC has been developed for future optical transmission systems. The IC was fabricated with AlGaAs/GaAs HBT technology, for which the f/sub T/ is about 70 GHz. It operates at 28 Gbit/s with an output voltage swing of 1 V/sub p-p/. This is the fastest operating speed ever reported for a selector IC using any technology.
[1] O. Nakajima,et al. Current induced degradation of Be-doped AlGaAs/GaAs HBTs and its suppression by Zn diffusion into extrinsic base layer , 1990, International Technical Digest on Electron Devices.