The PC1251GR-9LG, PC1251MP-KAA, PC358GR-9LG are dual operational amplifiers which are designed to operate for a single power supply. It includes features of low-voltage operation, a common-mode input voltage that range from V- (GND) level, an output from a V- (GND) level that is determined by the output stage of class C pushpull circuit and a 50 A(TYP.) constant current, and a low current consumption. In addition, this can operate at both positive and negative power supply and it can be extensively used in various amplifier circuits.