Title :
Simple technique using local CMFB to enhance slew rate and bandwidth of one-stage CMOS op-amps
Author :
Ramirez-Angulo, J. ; Holmes, M.
Author_Institution :
Klipsch Sch. of Electr. Eng., New Mexico State Univ., Las Cruces, NM, USA
fDate :
11/7/2002 12:00:00 AM
Abstract :
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.
Keywords :
CMOS analogue integrated circuits; integrated circuit design; operational amplifiers; 0.5 micron; bandwidth enhancement; class AB amplifier; equal silicon area; local CMFB; maximum gain-bandwidth product; one-stage CMOS op-amps; slew rate enhancement; static power dissipation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020764
