Created
March 1, 2018 10:37
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Simulation for IC 741 OpAmp
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* Simulation of IC-741 OpAmp | |
* Authors: Rahul Jha, Atiya Fatima Usmani and Umamah Khan | |
* Biasing: | |
V+ 1 0 15 | |
V- 0 4 15 | |
* Input Sine: | |
Vi 8 0 AC 0.5 sin(0 0.5 1khz) | |
* Circuit: | |
Q1 7 8 9 0 Q2N3904 | |
Q2 7 0 12 0 Q2N3904 | |
Q3 10 6 9 0 Q2N3906 | |
Q4 13 6 12 0 Q2N3906 | |
Q5 10 14 15 0 Q2N3904 | |
Q6 13 14 16 0 Q2N3904 | |
Q7 1 10 14 0 Q2N3904 | |
Q8 7 7 1 0 Q2N3906 | |
Q9 6 7 1 0 Q2N3906 | |
Q10 6 3 5 0 Q2N3904 | |
Q11 3 3 4 0 Q2N3904 | |
Q12 2 2 1 0 Q2N3906 | |
Q13A 20 2 1 0 Q2N3906 0.25 | |
Q13B 19 2 1 0 Q2N3906 0.75 | |
Q18 20 21 22 0 Q2N3904 | |
Q19 20 20 21 0 Q2N3904 | |
Q14 1 20 23 0 Q2N3904 20 | |
Q20 4 22 23 0 Q2N3906 20 | |
Q23 4 19 22 0 Q2N3906 | |
Q16 1 13 17 0 Q2N3904 | |
Q17 19 17 18 0 Q2N3904 | |
R1 15 4 1k | |
R2 16 4 1k | |
R3 14 4 50k | |
R4 5 4 5k | |
R5 2 3 39k | |
R8 18 4 100 | |
R9 17 4 50k | |
R10 21 22 40k | |
Cc 19 13 30p | |
.model Q2N3904 NPN(Is=6.734f Xti=3 Eg=1.11 Vaf=74.03 Bf=416.4 Ne=1.259 | |
+ Ise=6.734f Ikf=66.78m Xtb=1.5 Br=.7371 Nc=2 Isc=0 Ikr=0 Rc=1 | |
+ Cjc=3.638p Mjc=.3085 Vjc=.75 Fc=.5 Cje=4.493p Mje=.2593 Vje=.75 | |
+ Tr=239.5n Tf=301.2p Itf=.4 Vtf=4 Xtf=2 Rb=10) | |
.model Q2N3906 PNP(Is=1.41f Xti=3 Eg=1.11 Vaf=18.7 Bf=180.7 Ne=1.5 Ise=0 | |
+ Ikf=80m Xtb=1.5 Br=4.977 Nc=2 Isc=0 Ikr=0 Rc=2.5 Cjc=9.728p | |
+ Mjc=.5776 Vjc=.75 Fc=.5 Cje=8.063p Mje=.3677 Vje=.75 Tr=33.42n | |
+ Tf=179.3p Itf=.4 Vtf=4 Xtf=6 Rb=10) | |
.ac dec 100 1 10k | |
*.tran 10m | |
*.op | |
.end |
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