| 1 | ua741 ckt - ua 741 operational amplifier |
| 2 | .dc vin -0.25 0.25 0.005 |
| 3 | .ac dec 10 1 10ghz |
| 4 | .tran 2.5us 250us |
| 5 | vcc 27 0 15 |
| 6 | vee 26 0 -15 |
| 7 | vin 30 0 sin(0 0.1 10khz) ac 1 |
| 8 | rs1 2 30 1k |
| 9 | rs2 1 0 1k |
| 10 | rf 24 2 100k |
| 11 | r1 10 26 1k |
| 12 | r2 9 26 50k |
| 13 | r3 11 26 1k |
| 14 | r4 12 26 3k |
| 15 | r5 15 17 39k |
| 16 | r6 21 20 40k |
| 17 | r7 14 26 50k |
| 18 | r8 18 26 50 |
| 19 | r9 24 25 25 |
| 20 | r10 23 24 50 |
| 21 | r11 13 26 50k |
| 22 | comp 22 8 30pf |
| 23 | q1 3 1 4 qnl |
| 24 | q2 3 2 5 qnl |
| 25 | q3 7 6 4 qpl |
| 26 | q4 8 6 5 qpl |
| 27 | q5 7 9 10 qnl |
| 28 | q6 8 9 11 qnl |
| 29 | q7 27 7 9 qnl |
| 30 | q8 6 15 12 qnl |
| 31 | q9 15 15 26 qnl |
| 32 | q10 3 3 27 qpl |
| 33 | q11 6 3 27 qpl |
| 34 | q12 17 17 27 qpl |
| 35 | q14 22 17 27 qpl |
| 36 | q15 22 22 21 qnl |
| 37 | q16 22 21 20 qnl |
| 38 | q17 13 13 26 qnl |
| 39 | q18 27 8 14 qnl |
| 40 | q19 20 14 18 qnl |
| 41 | q20 22 23 24 qnl |
| 42 | q21 13 25 24 qpl |
| 43 | q22 27 22 23 qnl |
| 44 | q23 26 20 25 qpl |
| 45 | .model qnl npn(bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf |
| 46 | + va=50) |
| 47 | .model qpl pnp(bf=10 rb=20 tf=1ns tr=20ns cje=6pf cjc=4pf va=50) |
| 48 | .plot dc v(24) |
| 49 | .plot ac vm(24) vp(24) |
| 50 | .plot tran v(24) v(8) |
| 51 | .opt nolist nonode nomod |
| 52 | .end |