Version 4
SHEET 1 1744 1240
WIRE -896 -256 -1072 -256
WIRE -512 -256 -896 -256
WIRE 48 -256 -512 -256
WIRE 432 -256 48 -256
WIRE 528 -256 432 -256
WIRE -1072 -224 -1072 -256
WIRE -896 -224 -896 -256
WIRE -512 -224 -512 -256
WIRE 48 -224 48 -256
WIRE 432 -224 432 -256
WIRE -896 -128 -896 -144
WIRE -512 -128 -512 -144
WIRE 48 -128 48 -144
WIRE 432 -128 432 -144
WIRE 752 -128 752 -192
WIRE 880 -128 880 -192
WIRE -576 -112 -960 -112
WIRE -16 -112 -576 -112
WIRE 368 -112 -16 -112
WIRE -896 -80 -896 -128
WIRE -512 -80 -512 -128
WIRE 48 -80 48 -128
WIRE 432 -80 432 -128
WIRE -1072 -32 -1072 -144
WIRE -1040 -32 -1072 -32
WIRE -960 -32 -960 -112
WIRE -960 -32 -1040 -32
WIRE -576 -32 -576 -112
WIRE -16 -32 -16 -112
WIRE 368 -32 368 -112
WIRE 752 16 752 -48
WIRE 880 16 880 -48
WIRE -1072 48 -1072 -32
WIRE -896 128 -896 16
WIRE -848 128 -896 128
WIRE -752 128 -848 128
WIRE -608 128 -672 128
WIRE -512 128 -512 16
WIRE -512 128 -608 128
WIRE 48 128 48 16
WIRE 80 128 48 128
WIRE 192 128 80 128
WIRE 400 128 272 128
WIRE 432 128 432 16
WIRE 432 128 400 128
WIRE 624 176 -32 176
WIRE 720 176 624 176
WIRE 832 176 720 176
WIRE 912 176 832 176
WIRE 720 208 720 176
WIRE 912 208 912 176
WIRE 832 224 832 176
WIRE 864 224 832 224
WIRE -896 256 -896 128
WIRE -512 256 -512 128
WIRE 48 256 48 128
WIRE 432 256 432 128
WIRE 864 272 832 272
WIRE -1280 304 -1328 304
WIRE -1216 304 -1280 304
WIRE -1040 304 -1216 304
WIRE -960 304 -1040 304
WIRE -432 304 -448 304
WIRE -32 304 -32 176
WIRE -16 304 -32 304
WIRE 624 304 496 304
WIRE 720 304 720 288
WIRE 720 304 624 304
WIRE 832 304 832 272
WIRE 832 304 720 304
WIRE 912 320 912 288
WIRE -1328 352 -1328 304
WIRE -1216 352 -1216 304
WIRE -1280 368 -1280 304
WIRE -1328 464 -1328 432
WIRE -1280 464 -1280 416
WIRE -1216 464 -1216 432
WIRE -1216 464 -1280 464
WIRE -1040 464 -1216 464
WIRE -432 464 -432 304
WIRE -432 464 -1040 464
WIRE -896 496 -896 352
WIRE -864 496 -896 496
WIRE 240 496 -864 496
WIRE -512 544 -512 352
WIRE -464 544 -512 544
WIRE -112 544 -464 544
WIRE 608 544 -112 544
WIRE 48 592 48 352
WIRE 48 592 -48 592
WIRE 96 592 48 592
WIRE 144 592 96 592
WIRE 432 592 432 352
WIRE 432 592 336 592
WIRE 464 592 432 592
WIRE 544 592 464 592
WIRE -48 640 -48 592
WIRE 144 640 144 592
WIRE 336 640 336 592
WIRE 544 640 544 592
WIRE -112 688 -112 544
WIRE 240 688 240 496
WIRE 240 688 208 688
WIRE 272 688 240 688
WIRE 608 688 608 544
WIRE -896 704 -896 496
WIRE -512 704 -512 544
WIRE 800 720 784 720
WIRE 944 720 880 720
WIRE -960 752 -976 752
WIRE -432 752 -448 752
WIRE 144 768 144 736
WIRE 544 768 544 736
WIRE 544 768 144 768
WIRE -48 832 -48 736
WIRE 0 832 -48 832
WIRE 336 832 336 736
WIRE 336 832 0 832
WIRE 784 832 784 720
WIRE 784 832 336 832
WIRE 816 832 784 832
WIRE -976 848 -976 752
WIRE -896 848 -896 800
WIRE -896 848 -976 848
WIRE -720 848 -896 848
WIRE -704 848 -720 848
WIRE -512 848 -512 800
WIRE -512 848 -704 848
WIRE -432 848 -432 752
WIRE -432 848 -512 848
WIRE 944 848 944 720
WIRE 944 848 880 848
WIRE 1008 848 944 848
WIRE 544 864 544 768
WIRE 624 864 544 864
WIRE 784 864 624 864
WIRE 816 864 784 864
WIRE -720 896 -720 848
WIRE -48 896 -48 832
WIRE 544 896 544 864
WIRE 784 896 784 864
WIRE 784 992 784 976
WIRE -1072 1024 -1072 128
WIRE -720 1024 -720 976
WIRE -720 1024 -1072 1024
WIRE -48 1024 -48 976
WIRE -48 1024 -720 1024
WIRE 544 1024 544 976
WIRE 544 1024 -48 1024
WIRE 704 1024 544 1024
FLAG 752 16 0
FLAG 752 -192 Vcc
IOPIN 752 -192 BiDir
FLAG 880 16 0
FLAG 880 -192 Vee
IOPIN 880 -192 BiDir
FLAG 528 -256 Vcc
IOPIN 528 -256 BiDir
FLAG 704 1024 Vee
IOPIN 704 1024 BiDir
FLAG 912 320 0
FLAG -1328 464 0
FLAG 784 992 0
FLAG 1008 848 vo
IOPIN 1008 848 Out
FLAG 0 832 11
FLAG 624 864 12
FLAG -1040 -32 1
FLAG -848 128 2
FLAG -608 128 3
FLAG -864 496 4
FLAG -464 544 5
FLAG -704 848 6
FLAG 80 128 7
FLAG 400 128 8
FLAG 96 592 9
FLAG 464 592 10
FLAG -896 -128 21
FLAG -512 -128 22
FLAG 48 -128 23
FLAG 432 -128 24
FLAG -1040 304 xp
FLAG -1040 464 xm
FLAG 624 176 yp
FLAG 624 304 ym
SYMBOL voltage 752 -144 R0
SYMATTR InstName Vcc
SYMATTR Value 15V
SYMBOL voltage 880 -144 R0
SYMATTR InstName Vee
SYMATTR Value -15V
SYMBOL res 416 -240 R0
SYMATTR InstName Re1
SYMATTR Value 1k
SYMBOL res 32 -240 R0
SYMATTR InstName Re2
SYMATTR Value 1k
SYMBOL pnp 368 16 M180
SYMATTR InstName Q14
SYMATTR Value qPNP
SYMBOL pnp -16 16 M180
SYMATTR InstName Q13
SYMATTR Value qPNP
SYMBOL res 288 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Ry
SYMATTR Value 2k
SYMBOL pnp -112 736 M180
SYMATTR InstName Q1
SYMATTR Value qPNP
SYMBOL pnp 208 736 R180
SYMATTR InstName Q2
SYMATTR Value qPNP
SYMBOL pnp 272 736 M180
SYMATTR InstName Q3
SYMATTR Value qPNP
SYMBOL pnp 608 736 R180
SYMATTR InstName Q4
SYMATTR Value qPNP
SYMBOL pnp -16 352 M180
SYMATTR InstName Q5
SYMATTR Value qPNP
SYMBOL pnp 496 352 R180
SYMATTR InstName Q6
SYMATTR Value qPNP
SYMBOL res -528 -240 R0
SYMATTR InstName Re3
SYMATTR Value 1k
SYMBOL res -912 -240 R0
SYMATTR InstName Re4
SYMATTR Value 1k
SYMBOL pnp -576 16 M180
SYMATTR InstName Q12
SYMATTR Value qPNP
SYMBOL pnp -960 16 M180
WINDOW 0 86 27 Left 2
SYMATTR InstName Q11
SYMATTR Value qPNP
SYMBOL res -656 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rx
SYMATTR Value 2k
SYMBOL pnp -960 352 M180
SYMATTR InstName Q7
SYMATTR Value qPNP
SYMBOL pnp -448 352 R180
SYMATTR InstName Q8
SYMATTR Value qPNP
SYMBOL res 528 880 R0
SYMATTR InstName Rc2
SYMATTR Value 4k
SYMBOL res -64 880 R0
SYMATTR InstName Rc1
SYMATTR Value 4k
SYMBOL pnp -960 800 M180
SYMATTR InstName Q9
SYMATTR Value qPNP
SYMBOL pnp -448 800 R180
SYMATTR InstName Q10
SYMATTR Value qPNP
SYMBOL res -736 880 R0
SYMATTR InstName Rcc
SYMATTR Value 4k
SYMBOL res -1088 -240 R0
SYMATTR InstName Rb1
SYMATTR Value 1.7k
SYMBOL res -1088 32 R0
SYMATTR InstName Rb2
SYMATTR Value 28.3k
SYMBOL voltage 720 192 R0
SYMATTR InstName Vy
SYMATTR Value 0V
SYMBOL voltage -1216 336 R0
SYMATTR InstName Vx
SYMATTR Value 0V
SYMBOL e 912 192 R0
SYMATTR InstName Ey
SYMATTR Value 0.5
SYMBOL e -1328 336 M0
SYMATTR InstName Ex
SYMATTR Value 0.5
SYMBOL Opamps\\opamp 848 784 R0
SYMATTR InstName U1
SYMATTR SpiceLine Ad=100K
SYMATTR SpiceLine2 ""
SYMBOL res 896 704 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rf1
SYMATTR Value 20k
SYMBOL res 800 992 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName Rf2
SYMATTR Value 20k
TEXT 1208 616 Left 2 !.param amp=1m\n*.step param amp list 0.5m 1m 17m 50m 100m 1\n.model qnpn npn()\n.model qpnp pnp()
TEXT 1200 472 Left 2 !*.tran 1u 10m 0 1u\n*.four 1k v([vc2,vc1])\n.op\n.dc Vx -2 2 .01 Vy list -1 1 2 3
TEXT 1208 784 Left 2 !.subckt opamp 11 12 vo params: Ad=1e5\nE1 vo 0 12 11 {Ad}\n.ends