1. Low-Voltage Analog IC Design in CMOS Technology;Coban;IEEE Transactions on Circuits and Systems,1995
2. J. H. Botma R. F. Wassenaar R. J. Wiegerink A Low-Voltage CMOS Op Amp with a Rail-to-Rail Constant- g m Input Stage and a Class AB Rail-to-Rail Output Stage 1314
3. A Family of High-Swing CMOS Operational Amplifiers;Fiez;IEEE Journal of Solid State Circuits,1989