Title :
45 GHz transimpedance 32 dB limiting amplifier and 40 Gb/s 1:4 high-sensitivity demultiplexer with decision circuit using SiGe HBTs for 40 Gb/s optical receiver
Author :
Masuda, T. ; Ohhata, K.-i. ; Arakawa, F. ; Shiramizu, N. ; Ohue, E. ; Oda, K. ; Hayami, R. ; Tanabe, M. ; Shimamoto, H. ; Kondo, M. ; Harada, T. ; Washio, K.
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
A preamplifier with 45 GHz bandwidth and 50.2 dB/spl Omega/ transimpedance gain, a limiting amplifier with 32 dB gain and 49 GHz bandwidth, and a 40 Gb/s 1:4 high-sensitivity demultiplexer (HS-DEMUX) combined with a decision circuit are for use in a 40 Gb/s optical receiver. The bandwidth in the preamplifier and the maximum gain at 40 GHz in the limiting amplifier are the best reported for any semiconductor technology. The 1:4 HS-DEMUX uses bit-rotation for byte-synchronization.
Keywords :
Ge-Si alloys; bipolar digital integrated circuits; decision circuits; demultiplexing equipment; heterojunction bipolar transistors; limiters; optical receivers; preamplifiers; semiconductor materials; 32 dB; 40 Gbit/s; 45 GHz; SiGe; SiGe HBT IC; bandwidth; bit rotation; byte synchronization; decision circuit; high-sensitivity demultiplexer; limiting amplifier; optical receiver; preamplifier; semiconductor technology; transimpedance gain; Bandwidth; Capacitance; Circuits; Germanium silicon alloys; Optical amplifiers; Optical receivers; Photodiodes; Preamplifiers; Semiconductor optical amplifiers; Silicon germanium;
Conference_Titel :
Solid-State Circuits Conference, 2000. Digest of Technical Papers. ISSCC. 2000 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-5853-8
DOI :
10.1109/ISSCC.2000.839691
