Low-voltage low-power super class-AB CMOS op-amp with rail-to-rail input/output swing

Author

Baswa, S. ; Bikumandla, M. ; Ramírez-Angulo, J. ; López-Martín, A.J. ; Carvajal, R.G. ; Ducoudray-Acevedo, G.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

1

fYear

2004

fDate

3-5 Nov. 2004

Firstpage

83

Lastpage

86

Abstract

A low-voltage CMOS class AB OTA with rail to rail input/output swing, low supply voltage and very high slew rate is presented. The scheme is based on a combination of floating gate transistors, local common-mode feedback and class AB input. The proposed OTA does not suffer from typical reliability problems related with initial charge trapped in the floating gates devices. Simulation and experimental in 0.5 μm CMOS technology verify the scheme operating with 1V dual supply and 1.9 Vp-p input and output swing.

Keywords

CMOS integrated circuits; low-power electronics; operational amplifiers; 0.5 micron; 1 V; 1.9 V; class AB input; floating gate transistors; local common-mode feedback; rail-to-rail input/output swing; slew rate; super class-AB CMOS op-amp; supply voltage; CMOS technology; Capacitors; Circuits; Fabrication; Feedback; Low voltage; MOSFETs; Operational amplifiers; Rail to rail inputs; Rail to rail operation;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Systems, 2004. Proceedings of the Fifth IEEE International Caracas Conference on

Print_ISBN

0-7803-8777-5

Type

conf

DOI

10.1109/ICCDCS.2004.1393358

Filename

1393358