Title :
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
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;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.111963
