A new class AB multipath telescopic-cascode operational amplifier

Author

Noormohammadi, Mehdi ; Hajsadeghi, Khosrow

Author_Institution

ECE Dept., Sharif Univ. of Technol., Tehran, Iran

fYear

2012

fDate

15-17 May 2012

Firstpage

74

Lastpage

76

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2012 20th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4673-1149-6

Type

conf

DOI

10.1109/IranianCEE.2012.6292326

Filename

6292326