* SPICE netlist
XU1 N026 N016 0 -10 N020 level2 Avol=1Meg GBW=10Meg Slew=10Meg Ilimit=25m Rail=0 Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=500Meg ;pnba In+)In-)V+)V-)OUT
V1 -10 0 -10
V2 0 0 0
V3 -5 0 -5
R1 N026 -5 1k
R2 N026 -10 91k
R3 N020 N016 1k
R4 N021 -10 11.8k
R5 N016 N021 1k
R6 N016 N021 1k
R7 N016 CV 51.1k
V4 CV 0 10
R8 N020 P001 33
R9 P001 N031 50
R10 N031 P002 50
R11 P002 -5 1k
Q1 N018 N031 N028 0 2N3904
Q2 N014 N025 N028 0 2N3904
C1 N025 N031 100p
R12 N025 -5 100
Q3 N028 N034 N036 0 2N3904
R13 N036 -10 1k
R14 N034 -10 2k
R15 N034 P003 200
C2 P003 -10 10n
R16 N035 N034 15k
R17 N036 N016 160k
V5 -4 0 -4
XU2 N018 -4 10 -10 N035 level2 Avol=1Meg GBW=10Meg Slew=10Meg Ilimit=25m Rail=0 Vos=0 En=0 Enk=0 In=0 Ink=0 Rin=500Meg ;pnba In+)In-)V+)V-)OUT
V6 10 0 10
R18 N018 0 39k
C3 0 N014 10n
J1 N008 N014 N019 J201
J2 N009 N012 N019 J201
R19 N019 P004 100
Q4 P004 P005 P006 0 2N3904
R20 P006 -10 12k
R21 P005 -4 1k
R22 10 N008 5.6k
R23 10 N009 5.6k
R24 10 N004 1.2k
Q5 N027 N009 N004 0 2N3906
Q6 -10 N008 N004 0 2N3906
Q7 N014 N022 0 0 2N3906
R25 N027 -10 2.7k
Q8 N005 N027 -10 0 2N3904
R26 N005 N012 10.7k
C4 N005 N012 10p
C5 N005 N004 100p
R27 10 N012 33.2k
R28 N012 -10 15k
R29 10 N005 2.2k
R30 N006 N005 10.7k
R31 10 N006 33.2k
Q9 N017 N006 0 0 2N3906
Q10 N023 N017 0 0 2N3906
R32 N023 N022 910
R33 N032 N005 4.3k
R34 0 N032 4.7k
R35 N023 N030 56
R36 N006 N030 10k
R37 N030 -10 1k
R38 N017 -10 10k
Q11 N013 N005 N033 0 2N3904
Q12 10 N013 P007 0 2N3904
R39 N013 10 10.7k
R40 N033 -10 10k
R41 N013 -10 150k
R42 P007 N024 750
R43 N024 -10 8.2k
R44 N002 N005 43k
R45 N002 -10 390k
Q13 P008 N002 0 0 2N3906
Q14 N010 N015 -10 0 2N3904
R46 N015 P008 100k
R47 N015 -10 100k
R48 N010 N002 910k
R49 N029 N024 10k
R50 N032 N029 47k
R51 N003 N002 43k
R52 N011 N010 6.2k
R53 0 N001 1.5k
R54 N001 N007 1k
R55 N007 -10 7.5k
R56 N011 0 4.7k
J3 N008 N014 N019 J201
J4 N009 N012 N019 J201
.tran 0.1 uic

* LTspice schematic (.asc)
Version 4
SHEET 1 5120 1200
WIRE 2464 -568 2304 -568
WIRE 2560 -536 2560 -600
WIRE 2560 -424 2560 -456
WIRE 1968 -392 1872 -392
WIRE 2304 -392 2048 -392
WIRE 352 -344 352 -360
WIRE 352 -344 -112 -344
WIRE 544 -344 352 -344
WIRE 704 -344 704 -360
WIRE 704 -344 608 -344
WIRE 768 -344 704 -344
WIRE 896 -344 896 -360
WIRE 896 -344 848 -344
WIRE -112 -328 -112 -344
WIRE 352 -328 352 -344
WIRE 2560 -312 2560 -344
WIRE 48 -280 48 -360
WIRE 48 -280 -48 -280
WIRE 64 -280 48 -280
WIRE 176 -280 176 -360
WIRE 176 -280 160 -280
WIRE 288 -280 176 -280
WIRE 1008 -280 1008 -440
WIRE 1696 -280 1696 -440
WIRE 1872 -280 1872 -392
WIRE 1968 -280 1872 -280
WIRE 2176 -280 2048 -280
WIRE 2224 -280 2176 -280
WIRE 2336 -280 2304 -280
WIRE 64 -264 64 -280
WIRE 160 -264 160 -280
WIRE 496 -232 496 -360
WIRE 544 -232 496 -232
WIRE 704 -232 704 -344
WIRE 704 -232 608 -232
WIRE 896 -232 896 -344
WIRE 944 -232 896 -232
WIRE 1504 -232 1504 -360
WIRE 1600 -232 1504 -232
WIRE 1632 -232 1600 -232
WIRE 2176 -232 2176 -280
WIRE 16 -200 -32 -200
WIRE 48 -200 48 -280
WIRE 176 -200 176 -280
WIRE 256 -200 208 -200
WIRE 1136 -184 1136 -440
WIRE 1504 -184 1504 -232
WIRE 2064 -184 1984 -184
WIRE 2112 -184 2064 -184
WIRE 1984 -168 1984 -184
WIRE -1472 -136 -1504 -136
WIRE -864 -136 -864 -168
WIRE -192 -136 -864 -136
WIRE -32 -136 -32 -200
WIRE -32 -136 -192 -136
WIRE 0 -136 -32 -136
WIRE 256 -136 256 -200
WIRE 256 -136 224 -136
WIRE 496 -136 496 -232
WIRE 496 -136 256 -136
WIRE 544 -136 496 -136
WIRE 704 -136 704 -232
WIRE 704 -136 624 -136
WIRE 1008 -136 1008 -184
WIRE 1072 -136 1008 -136
WIRE 1440 -136 1344 -136
WIRE -384 -72 -704 -72
WIRE 48 -72 48 -104
WIRE 64 -72 64 -168
WIRE 64 -72 48 -72
WIRE 112 -72 64 -72
WIRE 160 -72 160 -168
WIRE 160 -72 112 -72
WIRE 176 -72 176 -104
WIRE 176 -72 160 -72
WIRE -1296 -40 -1328 -40
WIRE -1184 -40 -1216 -40
WIRE -192 -40 -192 -136
WIRE 1344 -40 1344 -136
WIRE 1744 -40 1344 -40
WIRE 1872 -40 1872 -280
WIRE 1872 -40 1824 -40
WIRE 1920 -40 1872 -40
WIRE -1584 -8 -1600 -8
WIRE -1472 -8 -1472 -136
WIRE -1472 -8 -1504 -8
WIRE -864 8 -864 -136
WIRE -704 8 -704 -72
WIRE 768 8 -128 8
WIRE 1136 8 1136 -88
WIRE 1136 8 848 8
WIRE 1696 24 1696 -104
WIRE 2432 24 1696 24
WIRE -960 56 -1040 56
WIRE -928 56 -960 56
WIRE 704 56 704 -136
WIRE 816 56 704 56
WIRE 1344 56 1344 -40
WIRE 1344 56 816 56
WIRE 1984 56 1984 8
WIRE 2432 56 2432 24
WIRE -1600 72 -1600 -8
WIRE -1600 72 -1632 72
WIRE -1584 72 -1600 72
WIRE -1472 72 -1472 -8
WIRE -1472 72 -1504 72
WIRE -1328 72 -1328 -40
WIRE -1328 72 -1472 72
WIRE -1296 72 -1328 72
WIRE 704 72 704 56
WIRE -1184 88 -1184 -40
WIRE -1184 88 -1232 88
WIRE -960 88 -960 56
WIRE -192 88 -192 56
WIRE 816 88 816 56
WIRE 896 88 896 -232
WIRE 1136 88 1136 8
WIRE -1344 104 -1424 104
WIRE -1296 104 -1344 104
WIRE 112 104 112 -72
WIRE 352 120 352 -232
WIRE 640 120 352 120
WIRE -864 136 -864 104
WIRE -784 136 -864 136
WIRE -704 136 -704 104
WIRE -704 136 -784 136
WIRE -1424 152 -1424 104
WIRE -1344 152 -1344 104
WIRE 2432 184 2432 136
WIRE 896 216 896 168
WIRE 1136 216 1136 168
WIRE 1136 216 896 216
WIRE -1184 264 -1184 248
WIRE -960 264 -960 152
WIRE -960 264 -1184 264
WIRE -640 264 -640 56
WIRE -640 264 -960 264
WIRE 816 264 816 168
WIRE 2432 264 816 264
WIRE -1184 280 -1184 264
WIRE 352 280 352 120
WIRE 496 280 496 -136
WIRE 816 280 816 264
WIRE 1008 280 1008 -136
WIRE 1136 280 1136 216
WIRE 1504 280 1504 -88
WIRE 1600 280 1600 -232
WIRE 1696 280 1696 24
WIRE 1872 280 1872 -40
WIRE 2064 280 2064 -184
WIRE 2336 280 2336 -280
WIRE -784 312 -784 136
WIRE -1040 360 -1040 56
WIRE -672 360 -720 360
WIRE -640 360 -672 360
WIRE -496 360 -560 360
WIRE 704 360 704 168
WIRE 2176 360 2176 -136
WIRE -384 376 -384 -72
WIRE -384 376 -432 376
WIRE -672 408 -672 360
WIRE -560 408 -672 408
WIRE -384 424 -384 376
WIRE -784 440 -784 408
WIRE -784 440 -896 440
WIRE -784 456 -784 440
WIRE -672 456 -672 408
WIRE -560 456 -560 408
WIRE -1472 552 -1472 72
WIRE -1200 552 -1472 552
WIRE -896 552 -896 440
WIRE -896 552 -1120 552
FLAG -1264 120 -10
IOPIN 256 208 BiDir
FLAG -1264 56 0
IOPIN 256 144 BiDir
FLAG -2336 120 0
FLAG -2448 120 0
FLAG -2336 40 -10
IOPIN -816 128 BiDir
FLAG -2448 40 0
IOPIN -928 128 BiDir
FLAG -2224 120 0
FLAG -2224 40 -5
IOPIN -704 128 BiDir
FLAG -1344 232 -5
IOPIN 176 320 BiDir
FLAG -1424 232 -10
IOPIN 96 320 BiDir
FLAG -1712 72 -10
IOPIN -192 160 BiDir
FLAG -2560 120 0
FLAG -2560 40 CV
IOPIN -1040 128 BiDir
FLAG -1584 -136 CV
IOPIN -64 -48 BiDir
FLAG -1184 440 -5
IOPIN 336 528 BiDir
FLAG -1040 440 -5
IOPIN 480 528 BiDir
FLAG -784 536 -10
IOPIN 736 624 BiDir
FLAG -672 536 -10
IOPIN 848 624 BiDir
FLAG -560 600 -10
IOPIN 960 688 BiDir
FLAG -2112 120 0
FLAG -2112 40 -4
IOPIN -592 128 BiDir
FLAG -464 392 -10
IOPIN 1056 480 BiDir
FLAG -2336 328 0
FLAG -2336 248 10
IOPIN -816 336 BiDir
FLAG -464 328 10
IOPIN 1056 416 BiDir
FLAG -384 504 0
FLAG -432 344 -4
IOPIN 1088 432 BiDir
FLAG -864 -232 0
FLAG 112 360 -10
IOPIN 1632 448 BiDir
FLAG -32 232 -4
IOPIN 1488 320 BiDir
FLAG 48 -440 10
IOPIN 1568 -352 BiDir
FLAG 176 -440 10
IOPIN 1696 -352 BiDir
FLAG 352 -440 10
IOPIN 1872 -352 BiDir
FLAG -112 -232 -10
IOPIN 1408 -144 BiDir
FLAG -192 88 0
FLAG 352 360 -10
IOPIN 1872 448 BiDir
FLAG 496 -440 10
IOPIN 2016 -352 BiDir
FLAG 496 360 -10
IOPIN 2016 448 BiDir
FLAG 704 360 -10
IOPIN 2224 448 BiDir
FLAG 704 -440 10
IOPIN 2224 -352 BiDir
FLAG 896 -440 10
IOPIN 2416 -352 BiDir
FLAG 1008 -440 0
FLAG 1136 -440 0
FLAG 816 360 0
FLAG 1008 360 -10
IOPIN 2528 448 BiDir
FLAG 1136 360 -10
IOPIN 2656 448 BiDir
FLAG 1504 -440 10
IOPIN 3024 -352 BiDir
FLAG 1696 -440 10
IOPIN 3216 -352 BiDir
FLAG 1504 360 -10
IOPIN 3024 448 BiDir
FLAG 1600 360 -10
IOPIN 3120 448 BiDir
FLAG 1696 360 -10
IOPIN 3216 448 BiDir
FLAG 1872 360 -10
IOPIN 3392 448 BiDir
FLAG 1984 56 0
FLAG 2064 360 -10
IOPIN 3584 448 BiDir
FLAG 2176 360 -10
IOPIN 3696 448 BiDir
FLAG 2560 -232 -10
IOPIN 4080 -144 BiDir
FLAG 2560 -600 0
FLAG 2464 -568 -10
IOPIN 3984 -480 BiDir
FLAG 2336 360 0
SYMBOL Opamps\\UniversalOpamp2 -1264 88 R0
SYMATTR InstName U1
SYMBOL voltage -2336 24 R0
SYMATTR InstName V1
SYMATTR Value -10
SYMBOL voltage -2448 24 R0
SYMATTR InstName V2
SYMATTR Value 0
SYMBOL voltage -2224 24 R0
SYMATTR InstName V3
SYMATTR Value -5
SYMBOL res -1360 136 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -1440 136 R0
SYMATTR InstName R2
SYMATTR Value 91k
SYMBOL res -1200 -56 R90
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res -1616 56 R90
SYMATTR InstName R4
SYMATTR Value 11.8k
SYMBOL res -1488 56 R90
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -1488 -24 R90
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL res -1488 -152 R90
SYMATTR InstName R7
SYMATTR Value 51.1k
SYMBOL voltage -2560 24 R0
SYMATTR InstName V4
SYMATTR Value 10
SYMBOL res -1200 72 R0
SYMATTR InstName R8
SYMATTR Value 33
SYMBOL res -1200 152 R0
SYMATTR InstName R9
SYMATTR Value 50
SYMBOL res -1200 264 R0
SYMATTR InstName R10
SYMATTR Value 50
SYMBOL res -1200 344 R0
SYMATTR InstName R11
SYMATTR Value 1k
SYMBOL npn -640 8 M0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL npn -928 8 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL cap -976 88 R0
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL res -1056 344 R0
SYMATTR InstName R12
SYMATTR Value 100
SYMBOL npn -720 312 M0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res -800 440 R0
SYMATTR InstName R13
SYMATTR Value 1k
SYMBOL res -688 440 R0
SYMATTR InstName R14
SYMATTR Value 2k
SYMBOL res -576 440 R0
SYMATTR InstName R15
SYMATTR Value 200
SYMBOL cap -576 536 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL res -544 344 R90
SYMATTR InstName R16
SYMATTR Value 15k
SYMBOL res -1104 536 R90
SYMATTR InstName R17
SYMATTR Value 160k
SYMBOL voltage -2112 24 R0
SYMATTR InstName V5
SYMATTR Value -4
SYMBOL Opamps\\UniversalOpamp2 -464 360 M0
SYMATTR InstName U2
SYMBOL voltage -2336 232 R0
SYMATTR InstName V6
SYMATTR Value 10
SYMBOL res -400 408 R0
SYMATTR InstName R18
SYMATTR Value 39k
SYMBOL cap -880 -232 R0
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL njf 0 -200 R0
SYMATTR InstName J1
SYMATTR Value J201
SYMBOL njf 224 -200 M0
SYMATTR InstName J2
SYMATTR Value J201
SYMBOL res 96 88 R0
SYMATTR InstName R19
SYMATTR Value 100
SYMBOL npn 48 184 R0
SYMATTR InstName Q4
SYMATTR Value 2N3904
SYMBOL res 96 264 R0
SYMATTR InstName R20
SYMATTR Value 12k
SYMBOL res 64 216 R90
SYMATTR InstName R21
SYMATTR Value 1k
SYMBOL res 32 -456 R0
SYMATTR InstName R22
SYMATTR Value 5.6k
SYMBOL res 160 -456 R0
SYMATTR InstName R23
SYMATTR Value 5.6k
SYMBOL res 336 -456 R0
SYMATTR InstName R24
SYMATTR Value 1.2k
SYMBOL pnp 288 -232 M180
SYMATTR InstName Q5
SYMATTR Value 2N3906
SYMBOL pnp -48 -232 R180
SYMATTR InstName Q6
SYMATTR Value 2N3906
SYMBOL pnp -128 -40 M0
SYMATTR InstName Q7
SYMATTR Value 2N3906
SYMBOL res 336 264 R0
SYMATTR InstName R25
SYMATTR Value 2.7k
SYMBOL npn 640 72 R0
SYMATTR InstName Q8
SYMATTR Value 2N3904
SYMBOL res 640 -152 R90
SYMATTR InstName R26
SYMATTR Value 10.7k
SYMBOL cap 608 -248 R90
SYMATTR InstName C4
SYMATTR Value 10p
SYMBOL cap 608 -360 R90
SYMATTR InstName C5
SYMATTR Value 100p
SYMBOL res 480 -456 R0
SYMATTR InstName R27
SYMATTR Value 33.2k
SYMBOL res 480 264 R0
SYMATTR InstName R28
SYMATTR Value 15k
SYMBOL res 688 -456 R0
SYMATTR InstName R29
SYMATTR Value 2.2k
SYMBOL res 864 -360 R90
SYMATTR InstName R30
SYMATTR Value 10.7k
SYMBOL res 880 -456 R0
SYMATTR InstName R31
SYMATTR Value 33.2k
SYMBOL pnp 944 -184 M180
SYMATTR InstName Q9
SYMATTR Value 2N3906
SYMBOL pnp 1072 -88 M180
SYMATTR InstName Q10
SYMATTR Value 2N3906
SYMBOL res 864 -8 R90
SYMATTR InstName R32
SYMATTR Value 910
SYMBOL res 832 184 R180
SYMATTR InstName R33
SYMATTR Value 4.3k
SYMBOL res 832 376 R180
SYMATTR InstName R34
SYMATTR Value 4.7k
SYMBOL res 1120 72 R0
SYMATTR InstName R35
SYMATTR Value 56
SYMBOL res 880 72 R0
SYMATTR InstName R36
SYMATTR Value 10k
SYMBOL res 1120 264 R0
SYMATTR InstName R37
SYMATTR Value 1k
SYMBOL res 992 264 R0
SYMATTR InstName R38
SYMATTR Value 10k
SYMBOL npn 1440 -184 R0
SYMATTR InstName Q11
SYMATTR Value 2N3904
SYMBOL npn 1632 -280 R0
SYMATTR InstName Q12
SYMATTR Value 2N3904
SYMBOL res 1520 -344 R180
SYMATTR InstName R39
SYMATTR Value 10.7k
SYMBOL res 1488 264 R0
SYMATTR InstName R40
SYMATTR Value 10k
SYMBOL res 1584 264 R0
SYMATTR InstName R41
SYMATTR Value 150k
SYMBOL res 1680 -200 R0
SYMATTR InstName R42
SYMATTR Value 750
SYMBOL res 1680 264 R0
SYMATTR InstName R43
SYMATTR Value 8.2k
SYMBOL res 1840 -56 R90
SYMATTR InstName R44
SYMATTR Value 43k
SYMBOL res 1856 264 R0
SYMATTR InstName R45
SYMATTR Value 390k
SYMBOL pnp 1920 -88 R0
SYMATTR InstName Q13
SYMATTR Value 2N3906
SYMBOL npn 2112 -232 R0
SYMATTR InstName Q14
SYMATTR Value 2N3904
SYMBOL res 1968 -184 R0
SYMATTR InstName R46
SYMATTR Value 100k
SYMBOL res 2048 264 R0
SYMATTR InstName R47
SYMATTR Value 100k
SYMBOL res 2064 -296 R90
SYMATTR InstName R48
SYMATTR Value 910k
SYMBOL res 2448 152 R180
SYMATTR InstName R49
SYMATTR Value 10k
SYMBOL res 2448 280 R180
SYMATTR InstName R50
SYMATTR Value 47k
SYMBOL res 2064 -408 R90
SYMATTR InstName R51
SYMATTR Value 43k
SYMBOL res 2320 -296 R90
SYMATTR InstName R52
SYMATTR Value 6.2k
SYMBOL res 2544 -552 R0
SYMATTR InstName R53
SYMATTR Value 1.5k
SYMBOL res 2544 -440 R0
SYMATTR InstName R54
SYMATTR Value 1k
SYMBOL res 2544 -328 R0
SYMATTR InstName R55
SYMATTR Value 7.5k
SYMBOL res 2320 264 R0
SYMATTR InstName R56
SYMATTR Value 4.7k
SYMBOL njf 16 -264 R0
SYMATTR InstName J3
SYMATTR Value J201
SYMBOL njf 208 -264 M0
SYMATTR InstName J4
SYMATTR Value J201