Title :
A wideband current-mode amplifier implemented from OTAs and its applications
Author :
Fabre, A. ; Mimeche, N.
Author_Institution :
Ecole Centrale de Paris, Lab. d´´Electronique, Chatenay-Malabray, France
Abstract :
A new concept for a current-mode amplifier (i.e. having input and output signals which are currents) is introduced. The circuit uses two operational transconductance amplifiers. Its gain-magnitude, which is temperature independent, is adjustable from one of the control-currents of the OTAs. Various applications of the circuit are also suggested, among which are a decoder and current-mode multiplexer. SPICE simulation results using the nominal transistors parameters of the high performance bipolar array ALA200 from ATT are given and discussed
Keywords :
operational amplifiers; wideband amplifiers; ALA200; SPICE simulation; bipolar array; current-mode amplifier; current-mode multiplexer; decoder; operational transconductance amplifiers; wideband; Broadband amplifiers; Circuits; Decoding; Equations; Feedback; Impedance; Operational amplifiers; Temperature control; Transconductance; Voltage;
Conference_Titel :
Euro ASIC '92, Proceedings.
Conference_Location :
Paris
Print_ISBN :
0-8186-2845-6
DOI :
10.1109/EUASIC.1992.228035
