Version 4 SHEET 1 1896 960 WIRE -144 -992 -208 -992 WIRE 0 -976 0 -1008 WIRE 0 -976 -80 -976 WIRE 64 -976 0 -976 WIRE 192 -976 144 -976 WIRE 224 -976 192 -976 WIRE 368 -976 304 -976 WIRE -144 -960 -384 -960 WIRE -208 -864 -208 -992 WIRE -144 -864 -208 -864 WIRE 0 -864 0 -976 WIRE 0 -864 -64 -864 WIRE 192 -848 192 -976 WIRE 240 -848 192 -848 WIRE -208 -832 -208 -864 WIRE 368 -832 368 -976 WIRE 368 -832 304 -832 WIRE 464 -832 368 -832 WIRE -384 -816 -384 -960 WIRE 240 -816 192 -816 WIRE -208 -720 -208 -752 WIRE -144 -720 -208 -720 WIRE 0 -720 0 -768 WIRE 0 -720 -64 -720 WIRE 64 -720 0 -720 WIRE 192 -720 192 -816 WIRE 192 -720 144 -720 WIRE 192 -672 192 -720 WIRE 400 -640 400 -656 WIRE 512 -640 512 -656 WIRE -208 -624 -208 -720 WIRE -144 -624 -208 -624 WIRE 0 -608 0 -720 WIRE 0 -608 -80 -608 WIRE -384 -592 -384 -736 WIRE -144 -592 -384 -592 WIRE -384 -544 -384 -592 WIRE 192 -544 192 -592 WIRE 400 -544 400 -560 WIRE 512 -544 512 -560 FLAG -384 -544 0 FLAG 192 -544 0 FLAG 400 -656 VCC FLAG 512 -656 VEE FLAG 400 -544 0 FLAG 512 -544 0 FLAG 272 -864 VCC FLAG -112 -640 VCC FLAG 272 -800 VEE FLAG -112 -1008 VCC FLAG -112 -944 VEE FLAG -112 -576 VEE FLAG 464 -832 Vout FLAG 0 -1008 a FLAG 0 -768 b SYMBOL voltage -384 -832 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 3 -10 357 Left 0 SYMATTR Value PWL value_scale_factor=0.01 time_scale_factor=0.8 repeat forever (FILE=ecgrecording.txt) endrepeat SYMATTR InstName Vecg SYMBOL res 48 -960 R270 WINDOW 0 41 40 VTop 0 WINDOW 3 -7 46 VBottom 0 SYMATTR InstName R1 SYMATTR Value 25K SYMBOL res 48 -704 R270 WINDOW 0 43 47 VTop 0 WINDOW 3 -10 45 VBottom 0 SYMATTR InstName R2 SYMATTR Value 25K SYMBOL res 208 -960 R270 WINDOW 0 33 109 VTop 0 WINDOW 3 6 115 VBottom 0 SYMATTR InstName R3 SYMATTR Value 25K SYMBOL res 176 -688 R0 SYMATTR InstName R4 SYMATTR Value 25K SYMBOL res -160 -848 R270 WINDOW 0 26 106 VTop 0 WINDOW 3 6 108 VBottom 0 SYMATTR InstName R5 SYMATTR Value 25K SYMBOL res -160 -704 R270 WINDOW 0 23 106 VTop 0 WINDOW 3 4 113 VBottom 0 SYMATTR InstName R6 SYMATTR Value 25K SYMBOL res -224 -848 R0 SYMATTR InstName R7 SYMATTR Value 5.5K SYMBOL voltage 400 -656 R0 WINDOW 0 39 18 Left 0 WINDOW 3 39 47 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage 512 -656 R0 WINDOW 0 43 17 Left 0 WINDOW 3 40 49 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value -12 SYMBOL Opamps\\LT1001A 272 -896 R0 SYMATTR InstName U4 SYMBOL Opamps\\LT1001A -112 -672 R0 SYMATTR InstName U5 SYMBOL Opamps\\LT1001A -112 -1040 R0 SYMATTR InstName U6 TEXT -400 -448 Left 0 !.tran 0 6 0 0.01 TEXT -400 -344 Left 0 ;Instrumentation Amplifier Simulation with real recorded ECG signal as PWL Source\nDesign and Simulation run by: Berns J.Buenaobra - UP National Inst. of Physics - Diliman TEXT -400 -424 Left 0 ;.include LM324.mod