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Design of Low Voltage Low Power CMOS OP-AMPS with Rail-to-Rail Input/Output Swing

Gopalaiah, SV and Shivaprasad, AP and Panigrahi, Sukanta K (2004) Design of Low Voltage Low Power CMOS OP-AMPS with Rail-to-Rail Input/Output Swing. In: Proceedings of the 17th International Conference on VLSI Design (VLSID’04), 5-9 January, 2004, Mumbai, India, pp. 57-61.


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A novel input and output biasing circuit to extend the input common mode (CM) voltage range and the output swing to rail-to-rail in a low voltage op-amp in standard CMOS technology is presented. The input biasing circuit uses a Switched Capacitor Based Attenuator (SCBA) approach to establish rail-to-rail common mode input voltage range. And the output biasing circuit uses an Output Driver (OD), with floating bias to give the rail-to-rail swing at output stage. Three different OD schemes in operational amplifier have been proposed and tested the performance with SCBA. The simulation results justify the theoretical analysis.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: ©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:12
URI: http://eprints.iisc.ac.in/id/eprint/348

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