Title :
Additional approach to the conception of current follower and amplifier with controllable features
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 :
Several modeled conceptions of current follower (or amplifier) with electronically adjustable input (intrinsic) resistance and current gain (in case of amplifier) are presented in the contribution. Features of proposed models are documented by symbolical analyses when considering important parasitic small signal properties. An example of behavior of such model is verified by simulations in PSpice. Described approaches allow design of applications without external (in IC case) floating resistors. Simple examples of two functional adjustable voltage mode biquad and oscillator are included.
Keywords :
amplifiers; current-mode circuits; oscillators; PSpice; amplifier; current follower; current gain; functional adjustable voltage mode biquad; oscillator; parasitic small signal property; symbolical analysis; Band pass filters; CMOS integrated circuits; Gain; Oscillators; Resistance; Resistors; Behavioral modeling; current amplifier; current follower; electronic control;
Conference_Titel :
Telecommunications and Signal Processing (TSP), 2011 34th International Conference on
Conference_Location :
Budapest
Print_ISBN :
978-1-4577-1410-8
DOI :
10.1109/TSP.2011.6043726
