Version 4
SHEET 1 1612 680
WIRE -416 -1024 -464 -1024
WIRE -752 -976 -784 -976
WIRE -672 -976 -720 -976
WIRE -576 -976 -592 -976
WIRE -512 -976 -512 -992
WIRE -160 -944 -160 -960
WIRE 0 -912 0 -960
WIRE 32 -912 0 -912
WIRE -608 -896 -800 -896
WIRE 0 -896 0 -912
WIRE -800 -880 -800 -896
WIRE -416 -880 -416 -896
WIRE -688 -864 -704 -864
WIRE -608 -864 -608 -896
WIRE -576 -864 -576 -976
WIRE -576 -864 -608 -864
WIRE -560 -864 -576 -864
WIRE -512 -864 -512 -896
WIRE -512 -864 -560 -864
WIRE -464 -864 -464 -1024
WIRE -464 -864 -512 -864
WIRE -448 -864 -464 -864
WIRE -352 -848 -352 -1024
WIRE -352 -848 -384 -848
WIRE -256 -848 -352 -848
WIRE -160 -848 -160 -864
WIRE -160 -848 -192 -848
WIRE -64 -848 -160 -848
WIRE 32 -848 32 -912
WIRE 144 -848 32 -848
WIRE 352 -848 352 -864
WIRE -448 -832 -464 -832
WIRE -688 -816 -688 -864
WIRE -688 -816 -800 -816
WIRE 416 -816 416 -864
WIRE -688 -800 -704 -800
WIRE -560 -800 -608 -800
WIRE -512 -800 -560 -800
WIRE -464 -800 -464 -832
WIRE -464 -800 -512 -800
WIRE -416 -800 -416 -816
WIRE 64 -800 0 -800
WIRE 80 -800 64 -800
WIRE 352 -800 352 -816
WIRE 352 -800 304 -800
WIRE -160 -784 -160 -848
WIRE 304 -784 304 -800
WIRE 352 -784 352 -800
WIRE -512 -768 -512 -800
WIRE -688 -752 -688 -800
WIRE -688 -752 -736 -752
WIRE 176 -752 144 -752
WIRE -608 -736 -608 -800
WIRE -592 -736 -608 -736
WIRE 32 -736 32 -848
WIRE 144 -736 32 -736
WIRE 352 -736 352 -752
WIRE 416 -736 416 -784
WIRE 64 -688 64 -800
WIRE 80 -688 64 -688
WIRE -512 -672 -512 -688
WIRE -736 -640 -736 -752
WIRE -688 -640 -736 -640
WIRE -592 -640 -592 -736
WIRE -592 -640 -624 -640
WIRE 176 -640 144 -640
WIRE 256 -640 256 -752
WIRE 304 -640 256 -640
WIRE 368 -640 304 -640
WIRE 464 -640 448 -640
WIRE 496 -640 464 -640
WIRE 512 -640 496 -640
WIRE -512 -624 -512 -640
WIRE 32 -624 32 -736
WIRE 144 -624 32 -624
WIRE 304 -624 304 -640
WIRE 496 -592 496 -640
WIRE 528 -592 496 -592
WIRE 608 -592 560 -592
WIRE 64 -576 64 -688
WIRE 80 -576 64 -576
WIRE -464 -560 -480 -560
WIRE -368 -560 -384 -560
WIRE 464 -560 464 -640
WIRE -704 -528 -736 -528
WIRE -624 -528 -672 -528
WIRE -512 -528 -544 -528
WIRE 176 -528 144 -528
WIRE 256 -528 256 -640
WIRE 32 -512 32 -624
WIRE 144 -512 32 -512
WIRE 560 -512 560 -592
WIRE 608 -512 560 -512
WIRE 64 -464 64 -576
WIRE 80 -464 64 -464
WIRE -416 -448 -416 -464
WIRE 608 -448 608 -512
WIRE 608 -448 512 -448
WIRE -624 -432 -672 -432
WIRE -512 -432 -512 -528
WIRE -512 -432 -544 -432
WIRE -480 -432 -480 -560
WIRE -480 -432 -512 -432
WIRE -448 -432 -480 -432
WIRE -368 -416 -368 -560
WIRE -368 -416 -384 -416
WIRE -160 -416 -160 -720
WIRE -160 -416 -368 -416
WIRE 176 -416 144 -416
WIRE 256 -416 256 -528
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WIRE 512 -416 512 -448
WIRE 512 -416 464 -416
WIRE 528 -416 512 -416
WIRE -624 -400 -672 -400
WIRE -512 -400 -544 -400
WIRE -448 -400 -512 -400
WIRE -512 -368 -512 -400
WIRE -416 -368 -416 -384
WIRE 64 -368 64 -464
WIRE 256 -368 256 -416
WIRE 256 -368 144 -368
WIRE -512 -272 -512 -288
WIRE -512 -224 -512 -240
FLAG -160 -960 +8V
FLAG -416 -896 +8V
FLAG -416 -800 -8V
FLAG 0 -960 Vin
FLAG -512 -992 0
FLAG 304 -624 0
FLAG 512 -640 out+
FLAG 528 -416 out-
FLAG 304 -784 0
FLAG 416 -736 out-
FLAG 352 -864 +8V
FLAG 352 -736 -8V
FLAG 416 -864 Vin
FLAG -512 -624 0
FLAG -704 -864 out+
FLAG -704 -800 out-
FLAG -784 -976 0
FLAG -416 -368 -8V
FLAG -416 -464 +8V
FLAG -672 -432 0
FLAG -672 -400 out+
FLAG -512 -224 0
FLAG -736 -528 0
SYMBOL EXTRA\\AudioOpamp\\TI\\TL071 -416 -848 R0
SYMATTR InstName U1
SYMBOL diode -192 -864 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res -176 -960 R0
SYMATTR InstName R2
SYMATTR Value 470
SYMBOL npn -64 -896 R0
SYMATTR InstName Q2
SYMBOL npn 80 -848 R0
SYMATTR InstName Q3
SYMBOL npn 80 -736 R0
SYMATTR InstName Q4
SYMBOL npn 80 -624 R0
SYMATTR InstName Q5
SYMBOL res 272 -768 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 0.2
SYMBOL res 272 -656 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 0.2
SYMBOL res 272 -544 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 0.2
SYMBOL npn 80 -512 R0
SYMATTR InstName Q1
SYMBOL res 272 -432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 0.2
SYMBOL cap -352 -1040 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 200p
SYMBOL diode -528 -864 R0
WINDOW 3 -74 -21 Left 2
SYMATTR Value 1N4148
SYMATTR InstName D3
SYMBOL diode -544 -800 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -27 -20 Left 2
SYMATTR InstName D4
SYMATTR Value 1N4148
SYMBOL res -528 -784 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -528 -992 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res -592 -816 R90
WINDOW 0 87 61 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 100k
SYMBOL res -592 -880 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 -54 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 100k
SYMBOL res 464 -656 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 0.330
SYMBOL cap 448 -560 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL MiniSyms4\\voltage- 352 -832 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 8
SYMBOL MiniSyms4\\voltage- 352 -768 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 8
SYMBOL MiniSyms4\\voltage- 416 -800 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 20
SYMBOL MiniSyms4\\voltage- -512 -656 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 1
SYMBOL current 608 -592 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 108 Left 2
SYMATTR SpiceLine load
SYMATTR InstName I1
SYMATTR Value PULSE(0.5 100 0 0 0 0.001 0.002)
SYMBOL res 160 -384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 200
SYMBOL res -576 -960 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R12
SYMATTR Value 10000k
SYMBOL MiniSyms4\\voltage- -736 -976 R90
WINDOW 0 -10 0 VBottom 2
WINDOW 3 10 0 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 4.096
SYMBOL EXTRA\\AudioOpamp\\TI\\TL071 -416 -416 R0
SYMATTR InstName U2
SYMBOL diode -176 -784 R0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res -528 -448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 100k
SYMBOL res -528 -416 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 100k
SYMBOL res -528 -384 R0
WINDOW 0 -42 56 Left 2
SYMATTR InstName R15
SYMATTR Value 270k
SYMBOL MiniSyms4\\voltage- -512 -256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value 1
SYMBOL res -368 -576 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 2000k
SYMBOL cap -624 -656 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap -816 -880 R0
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL res -528 -512 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R17
SYMATTR Value 10000k
SYMBOL MiniSyms4\\voltage- -688 -528 R90
WINDOW 0 -10 0 VBottom 2
WINDOW 3 10 0 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value 4.096
TEXT -720 -696 Left 2 !.tran 0.005
TEXT -440 -648 Left 2 ;Vset
TEXT -400 -800 Left 2 ;TL084
TEXT -888 -1008 Left 2 ;offset (fix)
TEXT -400 -368 Left 2 ;TL084
TEXT -456 -272 Left 2 ;Iset
TEXT -736 -480 Left 2 ;offset (fix)