17th International Conference on VLSI Design
Design of Low Voltage Low Power CMOS OP-AMPS with Rail-to-Rail Input/Output Swing
Mumbai, India
January 05-January 09
ISBN: 0-7695-2072-3
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.
Citation:
S. V. Gopalaiah, A. P. Shivaprasad, Sukanta K Panigrahi, "Design of Low Voltage Low Power CMOS OP-AMPS with Rail-to-Rail Input/Output Swing," vlsid, pp.57, 17th International Conference on VLSI Design, 2004