Version 4
SHEET 1 892 692
WIRE 224 160 192 160
WIRE 336 160 304 160
WIRE 448 160 416 160
WIRE 544 176 512 176
WIRE 592 176 544 176
WIRE 448 192 416 192
WIRE 416 208 416 192
WIRE 320 224 144 224
WIRE 432 224 400 224
WIRE 464 224 464 208
WIRE 480 224 480 208
WIRE 480 224 464 224
WIRE 144 240 144 224
WIRE 496 240 480 240
WIRE 592 240 592 176
WIRE 592 240 576 240
WIRE 224 256 208 256
WIRE 304 256 288 256
WIRE 480 272 480 240
WIRE 480 288 480 272
WIRE 304 304 304 256
WIRE 416 304 416 208
WIRE 416 304 304 304
WIRE 432 304 432 224
WIRE 448 304 432 304
WIRE 640 304 640 288
WIRE 672 304 640 304
WIRE 208 320 208 256
WIRE 224 320 208 320
WIRE 528 320 512 320
WIRE 592 320 592 240
WIRE 592 320 528 320
WIRE 144 336 144 320
WIRE 192 336 192 160
WIRE 192 336 144 336
WIRE 304 336 304 304
WIRE 304 336 288 336
WIRE 320 336 304 336
WIRE 416 336 400 336
WIRE 448 336 416 336
WIRE 528 336 528 320
WIRE 672 336 672 304
WIRE 224 352 176 352
WIRE 640 352 640 304
WIRE 176 368 176 352
WIRE 464 368 464 352
WIRE 480 368 480 352
WIRE 480 368 464 368
WIRE 416 416 416 336
WIRE 432 416 416 416
WIRE 528 416 528 400
WIRE 528 416 512 416
WIRE 144 464 144 336
WIRE 176 464 176 448
WIRE 176 464 144 464
WIRE 208 464 208 320
WIRE 288 464 208 464
WIRE 592 464 592 320
WIRE 592 464 368 464
WIRE 176 480 176 464
FLAG 176 480 0
FLAG 256 368 -V
FLAG 256 304 +V
FLAG 464 368 -V
FLAG 464 224 -V
FLAG 480 272 +V
FLAG 480 144 +V
FLAG 640 432 -V
FLAG 640 208 +V
FLAG 672 336 0
FLAG 416 208 Tri
FLAG 544 176 Cuad
SYMBOL Robertugo\\OPAMP5 256 272 R0
WINDOW 0 -30 65 Left 0
WINDOW 38 49 9 Left 0
SYMATTR InstName U1
SYMATTR SpiceModel LM118/LT
SYMBOL diode 512 336 R0
WINDOW 0 37 34 Left 0
WINDOW 3 12 98 Left 0
SYMATTR InstName D1
SYMATTR Value 1N914
SYMBOL res 160 352 R0
WINDOW 0 55 63 Left 0
WINDOW 3 53 86 Left 0
SYMATTR InstName R1
SYMATTR Value 18K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap 288 240 R90
WINDOW 0 16 56 VBottom 0
WINDOW 3 -11 2 VTop 0
SYMATTR InstName C1
SYMATTR Value 18n
SYMBOL res 416 320 R90
WINDOW 0 60 93 VBottom 0
WINDOW 3 32 43 VTop 0
SYMATTR InstName R2
SYMATTR Value 15K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 528 400 R90
WINDOW 0 58 97 VBottom 0
WINDOW 3 32 49 VTop 0
SYMATTR InstName R3
SYMATTR Value 2K2
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 432 144 R90
WINDOW 0 16 107 VBottom 0
WINDOW 3 -12 17 VTop 0
SYMATTR InstName R4
SYMATTR Value 470
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 592 224 R90
WINDOW 0 59 79 VBottom 0
WINDOW 3 32 43 VTop 0
SYMATTR InstName R6
SYMATTR Value 1K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 384 448 R90
WINDOW 0 -4 81 VBottom 0
WINDOW 3 -31 37 VTop 0
SYMATTR InstName R7
SYMATTR Value 22K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL voltage 640 336 R0
WINDOW 0 -42 10 Left 0
WINDOW 3 -6 59 Left 0
WINDOW 123 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMATTR SpiceLine Rser=1 Cpar=100n
SYMBOL voltage 640 192 R0
WINDOW 0 -42 10 Left 0
WINDOW 3 -6 59 Left 0
WINDOW 123 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5
SYMATTR SpiceLine Rser=1 Cpar=100n
SYMBOL voltage 208 160 R270
WINDOW 0 13 -20 VRight 0
WINDOW 3 0 48 VRight 0
WINDOW 123 0 0 Left 0
SYMATTR InstName Vcn
SYMATTR Value .1
SYMATTR SpiceLine Rser=.1 Cpar=100n
SYMBOL voltage 144 224 R0
WINDOW 0 -3 -12 Left 0
WINDOW 3 -6 59 Left 0
WINDOW 123 0 0 Left 0
SYMATTR InstName Vcp
SYMATTR Value .1
SYMATTR SpiceLine Rser=.1 Cpar=100n
SYMBOL res 416 208 R90
WINDOW 0 57 86 VBottom 0
WINDOW 3 32 43 VTop 0
SYMATTR InstName R5
SYMATTR Value 15K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL Robertugo\\comp6 480 112 R0
WINDOW 0 -21 64 Left 0
WINDOW 3 52 21 Center 0
SYMATTR InstName U2
SYMBOL Robertugo\\comp6 480 256 R0
WINDOW 0 -23 64 Left 0
WINDOW 3 59 44 Center 0
SYMATTR InstName U3
TEXT 408 488 Left 0 !.tran 1m startup