Current Follower Trans Conductance Amplifierscurrent-Mode Multiplier Circuit
Abdolhamid Sohrabi1, AzimRezaei Motlagh2, Majid Tavakoli3, Amir Rezaei Motlagh4
1Abdolhamid Sohrabi, Department of Electronics, Islamic Azad University Branch Bushehr, Boushehr Iran.
2AzimRezaei Motlagh, Department of Electronics, Islamic Azad University Branch Bushehr, Boushehr Iran.
3Majid Tavakoli, Department of Electronics, Islamic Azad University Branch Bushehr, Boushehr Iran.
4Amir Rezaei Motlagh, Department of Electronics, Islamic Azad University Branch Bushehr, Boushehr Iran.
Manuscript received on 10 November 2013 | Revised Manuscript received on 18 November 2013 | Manuscript Published on 30 November 2013 | PP: 97-99 | Volume-3 Issue-6, November 2013 | Retrieval Number: F1300113613/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Multiplier-divider circuits is using in digital signal processing base on neural networks and communications (amplifiers with variable gain, modulators, detectors and,…).In this paper, the design of a simple analog current mode multiplier/divider circuit using only two current followertrans conductance amplifiers (CFTAs) is presented. With the selection of the applied input currents, the proposed circuit can perform four-quadrant current multiplication, division and current controlled current amplification, all from the same circuit configuration. The circuit is also insensitive to ambient temperature variations. Additionally, the CFTA non-ideality effects and the non-ideal gain and parasitic component effects onthe proposed circuit are studied. The performances of therealized circuit are examined by PSPICE simulations.
Keywords: Analog Signal Processing, CFTA, Multiplier, Reconfigurable Circuits.
Scope of the Article: Nanometer-Scale Integrated Circuits