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Simple class-AB voltage follower with slew rate and bandwidth enhancement and no extra static power or supply requirements

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5 Author(s)
Ramirez-Angulo, J. ; Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA ; Lopez-Martin, A.J. ; Carvajal, R.G. ; Torralba, A.
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A simple modification of the MOS voltage follower is introduced that provides it with efficient class-AB operation. The modified circuit has dynamic output currents and bandwidth that are essentially larger than the conventional MOS voltage follower. This is achieved with the same static power dissipation, very small additional circuit complexity and lower distortion. Experimental verification of all these characteristics is provided.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 14 )