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SCFL-Compatible 40-Gbit/s RTD/HEMT Selector Circuit
Kimikazu SANO Koichi MURATA Hideaki MATSUZAKI
IEICE TRANSACTIONS on Electronics
Publication Date: 2000/10/25
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electronic Circuits
resonant tunneling diodes (RTDs), HEMTs, selector circuit, SCFL, lightwave communications,
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An SCFL-compatible 40-Gbit/s selector circuit using resonant tunneling diodes (RTDs) and high-electron-mobility transistors (HEMTs) is presented. The circuit comprises two monostable-bistable transition elements (MOBILEs) using RTDs, a HEMT NOR circuit, and a HEMT output buffer based on source-coupled-FET logic (SCFL). The circuit is fabricated by monolithically integrating RTDs and 0.1-µm HEMTs on an InP substrate. The fabricated circuit exhibits clear eye-opening at 40 Gbit/s with an output swing of 800 mVp-p, which is close to the conventional high-speed logic IC interface called SCFL.