Problem 3. Assume the op-amp below is ideal. a) Find the output voltage when the variable resistor is set to 60k ohms. b) How large can Rx be before the amplifier saturates. 63 ΚΩ 4.5 ΚΩ www 400 mV (+ ww 15 ΚΩ Rx 5 V -5 V Vo

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Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.