E_n-I_n Noise Matrix Modeling for Bipolar Operational Amplifier
Wang Jun · Journal of Electron Devices · 2000
In this paper, an approach to extract the E\-n-I\-n Noise matrix parameters of bipolar operational amplifier(op-am) is developed by describing the spectral density of equivalent input noise voltage of in-phase amplifier. And the principle of extraction is defined by analyzing the relative error of the complex correlation factor. In comparison with the current metnod, in our method, not only the complete noise characteristics of op-am, could be described but also the precision low-noise design of different op-am circuits, could be completed such as wide-band preamplifier, active filter. The feasibility and accuracy of method here are demonstrated by the experiments.