Title :
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
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;
Conference_Titel :
Modeling, Simulation and Applied Optimization (ICMSAO), 2011 4th International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4577-0003-3
DOI :
10.1109/ICMSAO.2011.5775556
