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Experiment #11 Operational Amplifier Practical Circuits Objective: To verify different configuration of operational amplifier using LTspice XVII simulation software Apparatus: Desktop or Laptop and LTspiceXVII simulation software Circuit Diagram: vi ADN TO VOO 20) 100 V2 Iran I- Circuit #1: Inverter Amplifier MI AD VS1 SINE IVOO 20) AC trans Circuit #2: Non-Inverting Amplifier VI N AD24 VSI PR SA IV B 10) AC Circuit #3: Buffer Circuit

VI 10 01 AD24 SI ( 120) VNS MC Va VS1 OSS 0 0 20) ACVB 20) 100 Circuit #4: Summing Amplifier Procedures : 1. Choose v1: 9 volts < V1< 15 volts(DC volts) 2. Choose V2: 9 volts < V2< 15 volts(DC volts) 3. Set Vs1 = 1 mV, 10khz(sine wave) 4. Choose Rf: 100k<Rf<200K 5. Choose R1 : 1K<R1<20K 6. Connect resistors, op-amp and voltage sources using LTspice VII 7. Make sure that same op amp is used 8. Simulate.. show the voltage output in relation to the input from circuit #1 9. REDO procedure 1 to 7, use circuit no.# 2, show voltage output and input relationship. 10. REDO procedure 1-3 and 6-7, use circuit no. #3, show voltage output and input relationship. 11. REDO procedure 1 to 6, use circuit no. #4, just copy the settings of R2, R3, Vs2 and Vs3, show output voltage in relation to the three inputs 12. Use theoretical analysis to determine the exactness of the simulation results in each circuit, then computer percentage error in procedure 8, 9, 10 and 11. Show Simulation Result: Save as a pictures with corresponding parameters ( limit 10 pics ) Show computation result for theoretical side: Observation: Conclusion: