You are here

ON THE DESIGN OF NEW CMOS DO-OTA TOPOLOGIES PROVIDING HIGH OUTPUT IMPEDANCE AND EXTENDED LINEARITY RANGE

Journal Name:

Publication Year:

Abstract (2. Language): 
In this paper, new realization techniques to enhance the performance of the CMOS differential output transconductance amplifiers (DO-OTAs) are proposed by combining the high-performance input and output stages given in the literature. The circuits proposed exhibit higher linearity and input signal range compared to the conventional counterparts. The advantage provided by the circuits proposed is demonstrated by SPICE simulations on current mode filters. The results prove that the new circuits exhibit a better performance for the input linearity and for the output impedance.
1449-1461

REFERENCES

References: 

[1] ZEKI. A. and KUNTMAN H.:
’High-output-impedance CMOS dual-output
OTA suitable for wide-range continuous-time
filtering applications’ ELECTRONICS
LETTERS, 1999, 16, pp 1295-1296.
[2] ERGÜN B. S. and KUNTMAN H.
:’Yüksek Lineerlikte DO-OTA
Gerçekleştirilmesi’ Proceedings of ELECO
2000: The 1st National Symposium of
Electrical, Electronics and Computer
Engineering, pp 77-81, Chamber of Turkish
Electrical Eng., Bursa section, 2000, Bursa
Turkey
[3] NEDUNGADI. A. and
VISWANATHAN T. R. ‘Design of Linear
CMOS Transconductance Elements’ IEEE
Trans. Circuits Syst., 1984, vol CAS31, pp
891-894
[4] ZEKİ A.: ‘Novel High Performance
OTA Structures Suitable for Continuous Time
OTA-C Filters’, PhD Thesis, October 1997,
I.T.U, Institute of Science and Technology.
[5] ANGULO R. J. and SINENCO S.
E.:’Active Compensation of Operational
Transconductance Amplifier Using Partial
Positive Feedback’ IEEE JSSC, 1990, vol 25,
pp 1024-1028
[6] ANGULO R. J., SINENCO S. E. and
HOWE M.:’Large f0 Q Second Order Filters
Using Multiple Output OTAS’ IEEE CASII,
1994, vol 41, pp 587-592
[7] KUNTMAN H.:”Analog MOS
Tümdevre Tekniği”, İTÜ Ofset Baskı
Atölyesi, 1997
[8] ERGÜN B. S.:”Yüksek Lineerlikte
CMOS DO-OTA Gerçekleştirilmesi”, MSc
Thesis, July 2001, I.T.U, Institute of Science
and Technology.
[9] ERGÜN B. S., KUNTMAN H.,
ÖZCAN S., Realization of a high performance
CMOS DO-OTA with extended linearity
range, SCS 2001, July 2001,Iasi, Romania
[10] KRUMMENACHER F. and JOEHL
N, A 4 MHz CMOS continuous-time filter onchip
automatic tuning, IEEE J. Solid-State
Circuits, Vol. 23, pp. 750-757,. 1988.
[11] E. SEEVINCK A and WASSENAAR
R.W., A versatile CMOS linear
transconductor/square-law function circuit’,
IEEE J. Solid-State Circuits, Vol. SC-22, pp.
366-377.
[12] WILSON G. and CHAN P.K.,
Comparison of four transconductors for fully
integrated filter applications, IEE Proceedings,
Pt-G, Vol. 138, No.6, pp.638-688, 1991.

Thank you for copying data from http://www.arastirmax.com