Version 4
SHEET 1 1616 1008
WIRE -240 224 -384 224
WIRE -32 224 -160 224
WIRE -288 288 -288 272
WIRE -288 304 -288 288
WIRE -576 320 -704 320
WIRE -384 320 -384 224
WIRE -384 320 -496 320
WIRE -320 320 -384 320
WIRE 224 320 224 256
WIRE -32 336 -32 224
WIRE -32 336 -256 336
WIRE 96 336 48 336
WIRE 192 336 96 336
WIRE -320 352 -496 352
WIRE 352 352 256 352
WIRE 192 368 160 368
WIRE -288 416 -288 368
WIRE -496 432 -496 352
WIRE 96 432 96 400
WIRE 224 432 224 384
WIRE 160 464 160 368
WIRE 352 464 352 352
WIRE 352 464 160 464
WIRE -832 512 -832 432
WIRE -496 544 -496 512
WIRE 352 560 352 464
WIRE -832 640 -832 592
WIRE 192 656 192 592
WIRE -400 672 -400 624
WIRE 352 672 352 640
WIRE 352 672 224 672
WIRE -128 688 -368 688
WIRE -48 688 -128 688
WIRE 96 688 32 688
WIRE 160 688 96 688
WIRE -704 704 -704 320
WIRE -592 704 -704 704
WIRE -480 704 -512 704
WIRE -432 704 -480 704
WIRE 288 704 224 704
WIRE -240 720 -368 720
WIRE -128 720 -128 688
WIRE 352 720 352 672
WIRE -704 752 -704 704
WIRE 192 752 192 720
WIRE 192 768 192 752
WIRE -400 784 -400 736
WIRE -400 800 -400 784
WIRE 96 800 96 688
WIRE 288 800 288 704
WIRE 288 800 96 800
WIRE -128 816 -128 784
WIRE 352 816 352 784
WIRE -704 848 -704 816
WIRE -480 880 -480 704
WIRE -240 880 -240 720
WIRE -240 880 -480 880
FLAG -832 432 +12
FLAG -832 640 0
FLAG -496 544 0
FLAG -288 416 0
FLAG -288 288 +12
FLAG -704 848 0
FLAG -400 624 0
FLAG -400 784 +12
FLAG -128 816 0
FLAG 192 752 +12
FLAG 192 592 0
FLAG 352 816 0
FLAG 96 432 0
FLAG 224 256 0
FLAG 224 432 +12
FLAG 352 672 OUT
SYMBOL voltage -496 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL voltage -832 496 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL res -480 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 360k
SYMBOL res -144 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1.5MEG
SYMBOL cap -720 752 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res -496 688 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL cap -144 720 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL res 48 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 336 544 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL cap 336 720 R0
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res 64 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL cap 112 400 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL Opamps\\LT1216 -288 272 R0
SYMATTR InstName U5
SYMBOL Opamps\\LT1216 224 416 M180
SYMATTR InstName U6
SYMBOL Opamps\\LT1216 192 752 R180
SYMATTR InstName U7
SYMBOL Opamps\\LT1216 -400 768 R180
SYMATTR InstName U8
TEXT -314 504 Left 2 !.tran 0 2m 0 100n startup