Title :
A new class AB multipath telescopic-cascode operational amplifier
Author :
Noormohammadi, Mehdi ; Hajsadeghi, Khosrow
Author_Institution :
ECE Dept., Sharif Univ. of Technol., Tehran, Iran
Abstract :
A novel class AB architecture for single stage multipath differential amplifier is presented. The proposed amplifier combines the flipped voltage follower(FVF) for differential input and the nonlinear current mirror for active load. Applying these techniques to telescopic-cascode amplifier increases the unity-gain bandwidth, the DC gain and the slew rate while the same power consumption as the conventional telescopic cascade is achieved.
Keywords :
current mirrors; operational amplifiers; telescopes; DC gain; FVF; active load; class AB architecture; class AB multipath telescopic-cascode operational amplifier; flipped voltage follower; nonlinear current mirror; power consumption; single stage multipath differential amplifier; slew rate; unity-gain bandwidth; Boosting; CMOS integrated circuits; Logic gates; Solids; Operational amplifier; class AB; filliped voltage follower(FVF); nonlinear current mirror; switched -capacitor circuit; wide swing nonlinear current mirror;
Conference_Titel :
Electrical Engineering (ICEE), 2012 20th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-1149-6
DOI :
10.1109/IranianCEE.2012.6292326
