Title :
Electronically adjustable modification of CFA: Double current controlled CFA (DCC-CFA)
Author :
Sotner, Roman ; Jerabek, Jan ; Herencsar, Norbert ; Dostal, Tomas ; Vrba, Kamil
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
A controllable modification of current feedback amplifier is presented in this contribution. In spite of classical conception, there are two current outputs of both polarities available and two buffered voltage outputs. The control of parameters consists of adjustable current gain between X and Z ports and intrinsic input resistance of current input (X). We proposed complex model of active element, which is based on CMOS and bipolar available transistor models of process technology. Spice simulations confirmed our presumptions and provided features of designed active element.
Keywords :
CMOS integrated circuits; SPICE; bipolar transistors; feedback amplifiers; CMOS; Spice; X ports; Z ports; active element; bipolar available transistor models; double current controlled current feedback amplifier; electronically adjustable modification; CMOS integrated circuits; Mathematical model; Oscillators; Resistance; Semiconductor device modeling; Signal processing; Transistors; Spice simulation and modeling; current feedback amplifier; double current controlled CFA; electronic control;
Conference_Titel :
Telecommunications and Signal Processing (TSP), 2012 35th International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4673-1117-5
DOI :
10.1109/TSP.2012.6256324
