FGMOS BASED VDTA AND ITS APPLICATION AS A BIQUAD FILTER
Abstract—The voltage differencing transconductance amplifier(VDTA) is a very new introduced active elements for fast processing of filters and oscillators. The realization of VDTA using CMOS was first given in .VDTA can also be realized as a tunable universal filter  by using only one VDTA block and two grounded capacitors and by setting the input conditions accordingly and it also provides the control over natural angular frequency as well as quality factor But the filter given in  was realized using TSMC 0.35µm model parameter with DC voltages of +V=-V=2Volt.In this paper we used VDTA as a bi quad filter and realize the filter using 180nm model parameter with DC supply voltages of +V=-V=0.75Volt.Hence,we are working on low voltage technique by replacing the MOSFETs in current mirror to FGMOS. To check the performance of proposed circuit computer simulations are accomplished with the LTSPICE.
 A. Yesil, F. Kacar, H. Kuntman, New simple CMOS realization of voltage differencing transconductance amplifier and its RF filter application, Radioengineering 20
(3) (2011) 632– 637.
 Jetsdaporn Satansup, Worapong Tangsrirat, Compact VDTA-based current-mode electronically tunable universal
filters using grounded capacitors,Microelectronics Journal,Volume 45, Issue 6,2014,Pages 613-618,ISSN 0026-2692.
 J. Satansup, T. Pukkalanun, W. Tangsrirat, Electronically tunable single-input five-output voltage-mode universal filter using VDTAs and grounded passive elements, Circuits Syst.Signal Process 32 (2013) 945–957.
 J. Satansup, W. Tangsrirat, Single VDTA-based voltage-mode electronically tunable universal filter, Sapporo, Japan, 2012 (In Proc. ITC-CSCC 2012).
 J. Satansup, T. Pukkalanun, W. Tangsrirat ,
2013.Electronically tunable current mode universal filter using VDTAs and grounded capacitors, in: Proceedings of the IMECS-2013.vol–II, Hong Kong, March 13–15.
 A. Yesil, F. Kacar, Electronically tunable resistorless mixed mode biquad, Radioengineering 22 (4) (2013) 1016– 1025.
 W. Mekhum, W. Jaikla, Three input single output voltage-mode multifunction filter with independent control of pole frequency and quality factor, Theor. Appl. Electric. Eng. 11 (6) (2013) 494–500.
 N. Herencsar, R. Sotner, J. Koton, J. Misurec, K. Vrba, New compact VM fourphase oscillator employing only single Z-copy VDTA and all grounded passive elements, Electron. Electric. Eng. 19 (10) (2013) 87–90.
 D. Prasad, D.R. Bhaskar, M. Srivastava, Universal current-mode biquad filter using a VDTA, Circuits Syst. 4
(1) (2013) 32–36.
 J. Satansup, W. Tangsrirat, Single VDTA-based current-mode electronically tunable multifunction filter, in: Proceedings of the I-SEEC 2012, Petchburi, Thailand, 2012, pp. 266– 272.
 S.I. Liu, C.S. Hwang, Realization of current-mode filters using single FTFN, Int. J. Electron 82 (5) (1997) 499– 502.
To ensure uniformity of treatment among all contributors, other forms may not be substituted for this form, nor may any wording of the form be changed. This form is intended for original material submitted to AJCT and must accompany any such material in order to be published by AJCT. Please read the form carefully.
The undersigned hereby assigns to the Asian Journal of Convergence in Technology Issues ("AJCT") all rights under copyright that may exist in and to the above Work, any revised or expanded derivative works submitted to AJCT by the undersigned based on the Work, and any associated written, audio and/or visual presentations or other enhancements accompanying the Work. The undersigned hereby warrants that the Work is original and that he/she is the author of the Work; to the extent the Work incorporates text passages, figures, data or other material from the works of others, the undersigned has obtained any necessary permission. See Retained Rights, below.
AJCT distributes its technical publications throughout the world and wants to ensure that the material submitted to its publications is properly available to the readership of those publications. Authors must ensure that The Work is their own and is original. It is the responsibility of the authors, not AJCT, to determine whether disclosure of their material requires the prior consent of other parties and, if so, to obtain it.
RETAINED RIGHTS/TERMS AND CONDITIONS
1. Authors/employers retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
2. Authors/employers may reproduce or authorize others to reproduce The Work and for the author's personal use or for company or organizational use, provided that the source and any AJCT copyright notice are indicated, the copies are not used in any way that implies AJCT endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
3. Authors/employers may make limited distribution of all or portions of the Work prior to publication if they inform AJCT in advance of the nature and extent of such limited distribution.
4. For all uses not covered by items 2 and 3, authors/employers must request permission from AJCT.
5. Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
INFORMATION FOR AUTHORS
AJCT Copyright Ownership
It is the formal policy of AJCT to own the copyrights to all copyrightable material in its technical publications and to the individual contributions contained therein, in order to protect the interests of AJCT, its authors and their employers, and, at the same time, to facilitate the appropriate re-use of this material by others.
If you are employed and prepared the Work on a subject within the scope of your employment, the copyright in the Work belongs to your employer as a work-for-hire. In that case, AJCT assumes that when you sign this Form, you are authorized to do so by your employer and that your employer has consented to the transfer of copyright, to the representation and warranty of publication rights, and to all other terms and conditions of this Form. If such authorization and consent has not been given to you, an authorized representative of your employer should sign this Form as the Author.
AJCT requires that the consent of the first-named author and employer be sought as a condition to granting reprint or republication rights to others or for permitting use of a Work for promotion or marketing purposes.
1. The undersigned represents that he/she has the power and authority to make and execute this assignment.
2. The undersigned agrees to indemnify and hold harmless AJCT from any damage or expense that may arise in the event of a breach of any of the warranties set forth above.
3. In the event the above work is accepted and published by AJCT and consequently withdrawn by the author(s), the foregoing copyright transfer shall become null and void and all materials embodying the Work submitted to AJCT will be destroyed.
4. For jointly authored Works, all joint authors should sign, or one of the authors should sign as authorized agent
for the others.
Licenced by :