# EXPT11 - My calculated results differed only slightly from...

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Lab 11: A Non-Inverting Amplifier Circuit Procedure: 1. Vout = (1+Rf/R1)Vin 5. 19.7 kOhms 6. Values are still the same 7. Vin = 1.5V, Rf = 19.7k, R1 = 11kOhms, Vout = 3.51, Gain = 2.01 Percent Deviation = .5% 9. Vout = 1.15V Vin (Volts) Vout (Volts) .5 1.15 1 2.31 1.5 3.51 2 4.58 2.5 5.80 3 6.89 3.5 8.11 4 9.12 4.5 10.3 5 11.58 Vout vs. Vin 0 2 4 6 8 10 12 14 0 1 2 3 4 5 6 Vin Vout Vout vs. Vin 12. Gain = 2.24, Standard Deviation = 12% 13. R3 = 7.35kOhms

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14. Vout vs. Vin 0 2 4 6 8 10 12 14 16 0 1 2 3 4 5 6 Vin Vout Vout vs. Vin 15. R3 = 4.9kOhms 16. Vout vs. Vin 0 5 10 15 20 25 0 1 2 3 4 5 6 Vin Vout vs. Vin Conclusion: From my experiment results I can draw a couple conclusions. The first conclusion I can make is that it is very easy to calculate an accurate expected voltage gain over a non-inverting op-amp.
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Unformatted text preview: My calculated results differed only slightly from the experimental results. The other main conclusion that I can draw is the linearity of the relationship between Vin and Vout. Obviously, based on the known equation, the two are related linearly, but actually graphing the plots made it visibly clear to me. As Vin increased, so did Vout in a very linear manner. Final Thoughts/Comments: This lab took me between an hour and half to two hours to complete. It was very tedious and repetitive. Every time I had to remove a trim pot, I would accidentally slightly alter the resistance. It was frustrating....
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## This lab report was uploaded on 03/30/2008 for the course ECE 2074 taught by Professor Stilwell during the Spring '08 term at Virginia Tech.

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EXPT11 - My calculated results differed only slightly from...

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