Shaolei Quan Meng-Yao Liu Chin-Long Wey Design of a CMOS Operational Amplifier Amenable to Extreme Voltage Stress. 563-572 2005 conf/dft/2005 DFT http://doi.ieeecomputersociety.org/10.1109/DFTVS.2005.31 db/conf/dft/dft2005.html#QuanLW05