A 0.5 V class AB quasi FGMOS pseudo fully differential CMOS op-amp with rail-to-rail input/output swing

Author

Thongleam, Thawatchai ; Suadet, Apirak ; Kanjanop, Arnon ; Singhanath, Pratchayaporn ; Hirunsing, Buncha ; Chuenta, Weerasak ; Kasemsuwan, Varakorn

Author_Institution

Sch. of Electron., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2011

fDate

19-21 April 2011

Firstpage

1

Lastpage

5

Abstract

This paper presents a 0.5 V pseudo fully differential CMOS op-amp with rail-to-rail input/output swing. The circuit is designed based on class AB input and output stages. In the design, quasi FGMOS transistors are employed. The proposed amplifier is designed using 0.18 μm CMOS technology, and the simulation results show rail-to-rail input and output swings. The open-loop gain and gain-bandwidth product show 73.3 dB and 12.6 MHz. The CMRR is 73.2 dB (at 1 kHz) and the power consumption is 27.9 μW.

Keywords

CMOS analogue integrated circuits; integrated circuit design; operational amplifiers; CMOS technology; amplifier; gain-bandwidth product; open-loop gain; power consumption; pseudofully differential CMOS op-amp; quasiFGMOS transistors; rail-to-rail input-output swing; size 0.18 mum; voltage 0.5 V; CMOS integrated circuits; Gain; Logic gates; Resistors; Threshold voltage; Transconductance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Modeling, Simulation and Applied Optimization (ICMSAO), 2011 4th International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4577-0003-3

Type

conf

DOI

10.1109/ICMSAO.2011.5775556

Filename

5775556