Version 4 SHEET 1 2484 1120 WIRE 80 -176 32 -176 WIRE 32 -160 32 -176 WIRE 80 -160 80 -176 WIRE 160 -32 112 -32 WIRE 160 -16 160 -32 WIRE 1120 -16 1040 -16 WIRE 80 16 80 -80 WIRE 112 16 112 -32 WIRE 1040 16 1040 -16 WIRE 1120 16 1120 -16 WIRE 48 64 -816 64 WIRE 304 80 272 80 WIRE 432 80 384 80 WIRE 688 80 432 80 WIRE -192 96 -208 96 WIRE -80 96 -112 96 WIRE 48 96 -80 96 WIRE 688 96 688 80 WIRE 1040 144 1040 96 WIRE -1360 160 -1376 160 WIRE -1248 160 -1360 160 WIRE -1088 160 -1104 160 WIRE -976 160 -1088 160 WIRE -208 176 -208 96 WIRE -1376 192 -1376 160 WIRE -1104 192 -1104 160 WIRE -816 192 -816 64 WIRE 688 208 688 176 WIRE 848 208 688 208 WIRE 928 208 912 208 WIRE 1216 208 1152 208 WIRE 1520 208 1216 208 WIRE -1248 224 -1248 160 WIRE -976 224 -976 160 WIRE 192 224 192 144 WIRE 1216 224 1216 208 WIRE -80 256 -80 96 WIRE -32 256 -80 256 WIRE 144 256 144 144 WIRE 144 256 48 256 WIRE 160 256 160 144 WIRE 160 256 144 256 WIRE 688 256 688 208 WIRE -1376 304 -1376 272 WIRE -1248 304 -1376 304 WIRE -1104 304 -1104 272 WIRE -1104 304 -1248 304 WIRE -976 304 -1104 304 WIRE -816 304 -816 272 WIRE -816 304 -976 304 WIRE 928 304 864 304 WIRE 1216 304 1216 288 WIRE 1216 304 1152 304 WIRE 1344 304 1216 304 WIRE -256 320 -352 320 WIRE 1344 320 1344 304 WIRE -1104 336 -1104 304 WIRE 688 368 688 336 WIRE 864 368 864 304 WIRE 864 368 688 368 WIRE -256 384 -256 320 WIRE 864 416 864 368 WIRE 1040 416 1040 368 WIRE 224 464 224 144 WIRE 224 464 -256 464 WIRE 256 480 256 144 WIRE 432 480 400 480 WIRE -256 560 -256 544 WIRE -48 560 -256 560 WIRE 256 560 256 480 WIRE 304 560 256 560 WIRE 432 560 432 480 WIRE 432 560 368 560 WIRE -256 656 -256 640 WIRE 432 752 432 560 WIRE 432 752 368 752 WIRE 528 752 432 752 WIRE 1520 752 1520 208 WIRE 1520 752 608 752 WIRE 256 768 256 560 WIRE 304 768 256 768 WIRE 400 784 368 784 WIRE -48 896 -48 560 WIRE 400 896 400 784 WIRE 400 896 -48 896 FLAG 96 224 0 FLAG 32 -160 0 FLAG 160 -16 0 FLAG 192 224 0 FLAG 432 144 0 FLAG 336 800 0 FLAG 336 656 0 FLAG -256 656 0 FLAG -1104 336 0 FLAG -1360 160 out4 FLAG -1088 160 out5 FLAG 1120 16 0 FLAG 1040 496 0 FLAG 1344 320 0 FLAG 864 416 0 FLAG -352 400 0 FLAG -208 176 0 SYMBOL OpAmps\\AD8336 96 32 R0 SYMATTR InstName U1 SYMBOL Misc\\battery 80 -64 R180 WINDOW 0 42 52 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL Misc\\battery 96 240 R180 WINDOW 0 24 104 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL res 64 240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 300 SYMBOL res -96 80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 100 SYMBOL res 400 64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL cap 416 80 R0 SYMATTR InstName C1 SYMATTR Value 4.7n SYMBOL OpAmps\\AD8551 336 704 M0 SYMATTR InstName U3 SYMBOL res 624 736 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 51 59 VTop 2 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL Misc\\battery 336 752 R180 WINDOW 0 24 104 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V5 SYMATTR Value 5 SYMBOL res 416 464 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL cap 320 464 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 2.2µ SYMBOL cap 368 544 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 22n SYMBOL res -272 368 R0 SYMATTR InstName R7 SYMATTR Value 2k SYMBOL res -272 448 R0 SYMATTR InstName R8 SYMATTR Value 1050 SYMBOL voltage -1376 176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 3 -36 199 Left 2 SYMATTR Value SINE(0 0.3 100k) SYMATTR InstName V3 SYMBOL voltage -1104 176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 3 34 207 Left 2 SYMATTR Value SINE(1 0.02 5) SYMATTR InstName V4 SYMBOL res -1264 208 R0 SYMATTR InstName R4 SYMATTR Value 1000k SYMBOL res -992 208 R0 SYMATTR InstName R12 SYMATTR Value 1000k SYMBOL bv -816 176 R0 SYMATTR InstName B1 SYMATTR Value V=(V(out4)*V(out5)) SYMBOL SpecialFunctions\\LTC1968 1040 256 R0 SYMATTR InstName U2 SYMBOL Misc\\battery 1040 512 R180 WINDOW 0 24 104 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V7 SYMATTR Value 5 SYMBOL cap 912 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 0.1µ SYMBOL cap 1200 224 R0 SYMATTR InstName C3 SYMATTR Value 1µ SYMBOL Misc\\battery 1040 112 R180 WINDOW 0 24 104 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V10 SYMATTR Value 5 SYMBOL Misc\\battery -352 304 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V11 SYMATTR Value 1.5 SYMBOL res 672 80 R0 SYMATTR InstName R11 SYMATTR Value 3k SYMBOL res 672 240 R0 SYMATTR InstName R13 SYMATTR Value 1k SYMBOL res -272 544 R0 SYMATTR InstName R9 SYMATTR Value 931 TEXT -720 760 Left 2 !.tran 1 startup