An operational amplifier to be used in an inverting amplifier configuration has

Chapter 3, Problem 3-9

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An operational amplifier to be used in an inverting amplifier configuration has anopen-loop gain A ~ 1.0 X 105 an input bias current of 5,U nA. a linear output voltagerange of :'C 10 V. and an input resistance of I.n X 10" n.(a) Design an inverting amplifier \Vith a gain of 25 such that the input resistanceR, is 10 kll.(b) Determine the range of usable input voltages for the amplifier in (a).Ic) Find the input resistance of the inverting amplifier designed in (a).(d) How Clluld you avoid a loading error if the voltage source were loaded bv theinput resistance found in (cr?

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