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Simple technique using local CMFB to enhance slew rate and bandwidth of one-stage CMOS op-amps

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2 Author(s)
Ramirez-Angulo, J. ; Klipsch Sch. of Electr. Eng., New Mexico State Univ., Las Cruces, NM, USA ; Holmes, M.

A simple modification to a one-stage op-amp for operation as a class AB amplifier leads to significant slew rate and bandwidth enhancement with essentially equal silicon area and static power dissipation requirements. Experimental results of a prototype in 0.5 μm CMOS verify SR and bandwidth enhancement factors of almost one order of magnitude.

Published in:

Electronics Letters  (Volume:38 ,  Issue: 23 )