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

fYear

2011

Firstpage

279

Lastpage

283

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications and Signal Processing (TSP), 2011 34th International Conference on

Conference_Location

Budapest

Print_ISBN

978-1-4577-1410-8

Type

conf

DOI

10.1109/TSP.2011.6043726

Filename

6043726