Input Impedance Of Ideal Op Amp. If the output is not in saturation the voltage between the two input terminals is zero. Zero input offset voltage.
An ideal op amp is usually considered to have the following characteristics. This observation is directly a consequence of the fact that the potential v at the node n is equal to 0. Q1 a b state the ideal value of input impedance z and output impedance z of operational amplifier and discuss their effect to the analysis of op amp in the linear region.
Zero input offset voltage.
Ideal input impedance would be infinite. In the real world due to manufacturing processes there s some input offset voltage such that v out a ol v v v input offset. If the output is not in saturation the voltage between the two input terminals is zero. Ideal op amps will have infinite voltage gain infinitely high impedance zero output impedance its gain is independent of input frequency it has zero voltage offset its output can swing positive or negative to the same voltages as the supply rails and its output swings instantly to the correct value.
