Title :
A novel 1.5-V CMOS operational amplifier
Author :
Palmisano, G. ; Palumbo, G. ; Salerno, R.
Author_Institution :
Universita´´ di Catania, Catania, Italy
Abstract :
A novel CMOS operational amplifier with a 1.5-V power supply is presented. It is based on a folded mirror transconductance amplifier and a high-efficiency output stage. The amplifier achieves an open-loop gain and a gain-bandwidth product higher than 65 dB and 1.3 MHz, respectively. Moreover, a 1-V peak-to-peak output voltage into a 500 Ω and 50 pF output load is provided width a THD of-67 dB.
Keywords :
CMOS technology; Current control; Linearity; Mirrors; Operational amplifiers; Power amplifiers; Power supplies; Threshold voltage; Transconductance; Variable structure systems;
Conference_Titel :
Solid-State Circuits Conference, 1997. ESSCIRC '97. Proceedings of the 23rd European
Conference_Location :
Southampton, UK
