Volume 4 Number 3 (Jun. 2012)
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IJCEE 2012 Vol.4(3): 396-399 ISSN: 1793-8163 DOI: 10.7763/IJCEE.2012.V4.520

A Low Power, Fully Differential Bulk Driven OTA in 180 nm CMOS Technology

Rekha S. and Laxminidhi T.
Abstract—A low voltage, low power bulk driven Operational Transconductance Amplifier (OTA) with feed-forward compensation is presented. The OTA is designed in 180 nm technology and achieves an open loop DC gain of 44.05 dB, 3 dB bandwidth of 408 kHz and Unity Gain Bandwidth (UGB) of 9.07 MHz. OTA is stable with phase margin of 45º and a gain margin of 66 dB for a pure capacitive load of 1 pF. OTA operates on 0.5 V supply consuming a power of 30 μW. As an application, a fifth order Chebyshev low pass filter is designed for a bandwidth of 480 kHz. Filter follows the ideal response up to an attenuation of 50 dB.

Index Terms—Bulk driven, CMOS, feed-forward frequency compensation

The authors are with National Institute of Technology Karnataka, Surathkal (e-mail: rsbhat_99@ yahoo.com, laxminidhi_t@ yahoo.com).

Cite: Rekha S. and Laxminidhi T., "A Low Power, Fully Differential Bulk Driven OTA in 180 nm CMOS Technology," International Journal of Computer and Electrical Engineering vol. 4, no. 3, pp. 396-399, 2012.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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