[yangandjiao]

Description(LM358A datasheet and PDF download)
These circuits consist of two independent, highgain, internally frequency-compensated which were designed specifically to operate from a single power supply over a wide range of voltages.The low power supply drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers,DC gain blocks and all the conventional op-amp circuits which now can be more easily implemented in single power supply systems. For example, these circuits can be directly supplied with the standard +5V which is used in logic systems and will easily provide the required interface electronics without requiring any additional power supply. In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from only a single power supply voltage.