Low Voltage CMOS op-amp with Rail-to-Rail Input/Output Swing

Abstract--As the supply voltage to a standard CMOS opamp is reduced, the input common mode range and the output swing get reduced drastically. Special biasing circuits have to be used to raise them up to rail-to-rail supply voltage. Three low voltage op-amps with new biasing circuits have been proposed in this paper and their performance evaluated. The op-amp design is focused on dynamic range and high drive capability.

• Type: Conference
• Year: 2004
• Where: DELTA
• Authors: S. V. Gopalaiah, A. P. Shivaprasad
• Keywords: Biasing Circuits, DELTA 2004, Information Management, Special Biasing Circuits, Supply Voltage