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Journal of Electrical and Computer Engineering
Volume 2011, Article ID 361384, 10 pages
Research Article

Differential Difference Current Conveyor Transconductance Amplifier: A New Analog Building Block for Signal Processing

1Department of Electronics and Communication Engineering, Delhi Technological University, Delhi 110042, India
2Department of Electronics Engineering, Indian School of Mines, Jharkhand 826004, India

Received 30 March 2011; Revised 28 August 2011; Accepted 31 August 2011

Academic Editor: Raj Senani

Copyright © 2011 Neeta Pandey and Sajal K. Paul. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new active building block for analog signal processing, namely, differential difference current conveyor transconductance amplifier (DDCCTA), is presented, and performance is checked through PSPICE simulations which show the usability of the proposed element is up to 201 MHz. The proposed block is implemented using 0.25 μm TSMC CMOS technology. Some of the applications are presented using the proposed DDCCTA, namely, a voltage mode multifunction filter, a current mode universal filter, an oscillator, current and voltage amplifiers, and grounded inductor simulator. The feasibility of DDCCTA and its applications is confirmed via PSPICE simulations.