Question: ( * * * * * microelectronics 1 * * * * * ) Q 1 - 1 ) The current mirror using BJT has

(*****microelectronics1*****) Q1-1) The current mirror using BJT has an error because of the existence of the base current. Induce the expression that shows the error of the current. Show the whole process, not only final expression. Q1-2) To suppress the above error in Q1-1, bipolar current mirror can be modified as specific topology. Draw that circuit topology and induce the expression that shows the error is suppressed. Show the whole process, not only final expression.

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