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A 0.5 volt rail-to-rail CMOS pseudo-differential OTA using simple feed-forward technique

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4 Author(s)
Apirak Suadet ; School of Electronics, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Rd., Bangkok 10520, THAILAND ; Thawatchai Thongleam ; Varakorn Kasemsuwan ; Kasin Vichienchom

This paper presents a low voltage CMOS pseudo differential OTA using simple feed-forward technique. The circuit employs feed-forward technique to suppress the common-mode gain, and positive feedback to enhance the output impedance. The circuit is designed using 0.18 μm CMOS technology under 0.5 V supply. The simulation results show rail-to-rail input/output swing, achieved with low common-mode gain (-35 dB). The output swing of the circuit is 0.3 Vpp. The power dissipation of the circuit is 50 μW.

Published in:

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2011 8th International Conference on

Date of Conference:

17-19 May 2011