1.4-THz gain-bandwidth product InP-HEMTs preamplifier using an improved Cherry-Hooper topology

Author

Sato, M. ; Shigematsu, H. ; Inoue, Y. ; Arai, T. ; Sawada, K. ; Takahashi, T. ; Makiyarna, K. ; Hirose, T.

Author_Institution

High-speed IC Technol. Dept., Fujitsu Labs. Ltd., Atsugi, Japan

fYear

2002

fDate

20-23 Oct. 2002

Firstpage

167

Lastpage

170

Abstract

We have developed an InP-HEMT differential-ended broadband preamplifier with THz-class gain-bandwidth product by using an improved Cherry-Hooper topology. The key to achieving the high performance preamplifier is to use a mismatching technique, which expands the impedance difference between gain stages. Using this technique, we achieved 64 dB/spl Omega/ transimpedance gain with a 40 GHz bandwidth, and its gain-bandwidth product reached 1.42 THz - the highest yet reported for 40 Gbit/s preamplifiers.

Keywords

HEMT integrated circuits; III-V semiconductors; MMIC amplifiers; differential amplifiers; impedance matching; indium compounds; integrated circuit design; integrated circuit measurement; millimetre wave amplifiers; optical fibre communication; preamplifiers; wideband amplifiers; 40 GHz; 40 Gbit/s; Cherry-Hooper topology; InP; InP-HEMT preamplifiers; THz-class gain-bandwidth product; differential-ended broadband preamplifiers; gain stage differences; gain stage impedance mismatching techniques; high-speed fiber optic communications; transimpedance gain; wide bandwidth preamplifiers; Bandwidth; Circuit topology; Differential amplifiers; High speed optical techniques; Impedance; Optical amplifiers; Optical distortion; Optical receivers; Preamplifiers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2002. 24th Annual Technical Digest

Conference_Location

Monterey, California, USA

ISSN

1064-7775

Print_ISBN

0-7803-7447-9

Type

conf

DOI

10.1109/GAAS.2002.1049053

Filename

1049053