Title :
GaAs MESFET multi-output current mirrors and their application to high frequency filters
Author :
Takai, Nobukazu ; Fujii, Nobuo
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
Abstract :
This paper describes current mirrors which consists of n-channel depletion-mode GaAs MESFETs. The newly proposed current mirrors have both inverting and non-inverting output terminals that enable us to realize current-mode circuits very simply. Current mode filters can be realized by using current-mode integrators which are obtained by adding a capacitor at the input port of the current mirror. As an example of filters, we show a leapfrog structure of a third-order low-pass filter. HSPICE simulation was performed to verify the validity of the proposed current-mode filter
Keywords :
III-V semiconductors; MESFET integrated circuits; active filters; current mirrors; current-mode circuits; field effect analogue integrated circuits; gallium arsenide; integrating circuits; low-pass filters; radiofrequency filters; GaAs; GaAs MESFET process; HF filter application; current mode filters; current-mode circuits; current-mode integrators; depletion-mode MESFETs; high frequency filters; inverting output terminals; leapfrog structure; multi-output current mirrors; n-channel MESFETs; noninverting output terminals; third-order low-pass filter; Analog circuits; Circuit simulation; FETs; Frequency; Gallium arsenide; Low pass filters; MESFETs; MOSFETs; Mirrors; Signal processing;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.814887
