Title :
A simple technique to significantly enhance slew rate and bandwidth of one-stage CMOS operational amplifiers
Author :
Ramirez-Angulo, Jaime ; Holmes, Michael
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
Abstract :
A simple technique to modify a conventional one-stage op-amp for operation as a class AB amplifier is discussed. This technique leads to significant slew rate and bandwidth enhancement with essentially equal silicon area and static power dissipation requirements. Experimental results of test chip prototype in 0.5 μm CMOS technology are presented. Results verify slew rate and bandwidth enhancement factors of almost one order of magnitude.
Keywords :
CMOS analogue integrated circuits; frequency response; integrated circuit design; operational amplifiers; 0.5 μm CMOS technology; 0.5 micron; bandwidth enhancement; class AB amplifier; one-stage CMOS operational amplifier; op-amp design; silicon area requirements; slew rate enhancement; static power dissipation requirements; test chip prototype; Bandwidth; CMOS technology; Circuits; Mirrors; Operational amplifiers; Parasitic capacitance; Power dissipation; Resistors; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1011483
