High frequency GaAs transconductors and other building blocks for communication

Author

Haigh, D.G. ; Toumazou, C.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll., London, UK

fYear

1990

fDate

1-3 May 1990

Firstpage

1731

Abstract

The authors apply experience gained in the design of GaAs switched-capacitor filters to develop a number of GaAs building blocks for high-frequency continuous-time systems, including a linear negative current mirror, an unbalanced-to-balanced converter, and a transconductor. Some general principles for the realization of linear transconductors are presented, and a circuit is developed in which the dominant nonlinearity is significantly reduced. The application and impact of these circuits in microwave and optical systems and also for high-frequency filtering are considered

Keywords

III-V semiconductors; amplifiers; convertors; driver circuits; field effect integrated circuits; gallium arsenide; microwave amplifiers; optical communication equipment; solid-state microwave circuits; switched capacitor filters; telecommunication equipment; GaAs MESFET technology; HSPICE; circuit design; communication systems; drivers; high frequency GaAs transconductors; high-frequency continuous-time systems; high-frequency filtering; linear negative current mirror; linear transconductors; microwave amplifier; microwave system; optical systems; semiconductors; simulation; unbalanced-to-balanced converter; Filtering; Frequency; Gallium arsenide; Microwave circuits; Microwave filters; Mirrors; Nonlinear filters; Optical filters; Switching converters; Transconductors;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1990., IEEE International Symposium on

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/ISCAS.1990.111963

Filename

111963