The Problem in Teaching Process of Integrated Operational Amplifier Circuit
Ke Xie · Journal of Yiyang Teachers College · 2001
This article points out the difference in the definition of input offset current about analog Integrated Operational Amplifier Circuit (IOAC) in common teaching material for analog electronics. The problem being brought about for using the definition of input offset current “I IO =I BN -I BP ” is that the direction of current in equivalent circuit on practice analog IOAC is not decided. The necessity of using the identical definition expressed as “I IO =I BN -I BP ” is suggested. The example used to illustrate how to decide the direction of current in equivalent circuit of practice analog IOIC according to that identical definition is shown. The role of the balance resistant connected to the input port of circuit using IOAC is illustrated by means of a equivalent.