Ideal Op Amp Characteristics

        For an ideal operational amplifier, its input stage has the following characteristics:
(1) Infinite input impedance and infinitely small input capacitance. In this way, the op amp will not be affected by the impedance of the signal source. The most basic feature is that the voltage of the signal source will be completely absorbed by the op amp (2
) infinitely close to or even exceeding the input voltage range of the power rail
(3) infinite differential gain and infinite Common-mode voltage rejection ratio
(4) Infinite signal bandwidth
(5) Infinitely small offset voltage, bias current and offset current
(6) For an ideal operational amplifier, its output stage has the following characteristics:
(7) Infinitely small output impedance, This way the voltage can be fully delivered to the load circuit without forming an extra pole with the capacitive load.
(8) The output voltage range is infinitely close to or even exceeds the power supply rail.
(9) Infinitely small signal distortion