Version 4 SHEET 1 1164 1076 WIRE -352 272 -352 240 WIRE -352 384 -352 352 WIRE -336 128 -336 96 WIRE -304 96 -336 96 WIRE -272 240 -352 240 WIRE -272 688 -336 688 WIRE -64 576 -64 544 WIRE -32 192 -64 192 WIRE -32 240 -192 240 WIRE -32 240 -32 192 WIRE -32 272 -32 240 WIRE -32 384 -32 352 WIRE -32 544 -64 544 WIRE -32 640 -64 640 WIRE -32 688 -192 688 WIRE -32 688 -32 640 WIRE -32 720 -32 688 WIRE -32 832 -32 800 WIRE 16 240 -32 240 WIRE 16 688 -32 688 WIRE 80 96 -224 96 WIRE 80 208 80 96 WIRE 80 544 48 544 WIRE 80 656 80 544 WIRE 112 208 80 208 WIRE 112 240 16 240 WIRE 112 656 80 656 WIRE 112 688 16 688 WIRE 144 192 144 176 WIRE 144 272 144 256 WIRE 144 640 144 624 WIRE 144 720 144 704 WIRE 192 96 80 96 WIRE 192 544 80 544 WIRE 272 352 272 320 WIRE 272 464 272 432 WIRE 304 96 272 96 WIRE 304 224 176 224 WIRE 304 224 304 96 WIRE 304 544 272 544 WIRE 304 672 176 672 WIRE 304 672 304 544 WIRE 368 224 304 224 WIRE 368 672 304 672 WIRE 416 352 416 320 WIRE 416 464 416 432 WIRE 448 224 368 224 WIRE 448 672 368 672 WIRE 592 224 528 224 WIRE 592 272 592 224 WIRE 592 384 592 352 WIRE 592 672 528 672 WIRE 592 720 592 672 WIRE 592 832 592 800 WIRE 640 672 592 672 WIRE 672 224 592 224 FLAG -32 384 0 FLAG 592 384 0 FLAG 144 272 -5V FLAG 144 176 +5V FLAG -336 128 0 FLAG 672 224 out IOPIN 672 224 Out FLAG -352 384 0 FLAG 272 464 0 FLAG 416 464 0 FLAG 272 320 +5V FLAG 416 320 -5V FLAG 368 224 out1 FLAG 16 240 in1 FLAG -352 240 in0 FLAG -64 192 in IOPIN -64 192 In FLAG -32 832 0 FLAG 592 832 0 FLAG 144 720 -5V FLAG 144 624 +5V FLAG -64 576 0 FLAG 640 672 out_b IOPIN 640 672 Out FLAG 368 672 out1_b FLAG 16 688 in2 FLAG -336 688 in0 FLAG -64 640 in_b IOPIN -64 640 In SYMBOL res -320 112 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R1 SYMATTR Value 500 SYMBOL res 176 112 R270 WINDOW 0 -25 12 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R2 SYMATTR Value 500 SYMBOL res -48 256 R0 SYMATTR InstName R3 SYMATTR Value 75 SYMBOL res 432 240 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R4 SYMATTR Value 75 SYMBOL res 576 256 R0 SYMATTR InstName R5 SYMATTR Value 75 SYMBOL voltage -352 256 R0 WINDOW 3 -38 175 Left 0 WINDOW 123 -38 203 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(-2 2 10n 1n 1n 19n 40n) SYMATTR Value2 AC 1 SYMATTR InstName V1 SYMBOL res -288 256 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R6 SYMATTR Value 75 SYMBOL voltage 272 336 R0 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL voltage 416 336 R0 SYMATTR InstName V3 SYMATTR Value -5 SYMBOL res -48 560 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R7 SYMATTR Value 500 SYMBOL res 176 560 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R8 SYMATTR Value 500 SYMBOL res -48 704 R0 SYMATTR InstName R9 SYMATTR Value 75 SYMBOL res 432 688 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R10 SYMATTR Value 75 SYMBOL res 576 704 R0 SYMATTR InstName R11 SYMATTR Value 75 SYMBOL res -288 704 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R12 SYMATTR Value 75 SYMBOL Var\\OPAMP5 144 160 R0 SYMATTR InstName U1 SYMATTR SpiceModel MAX477 SYMBOL Var\\OPAMP5 144 608 R0 SYMATTR InstName U2 SYMATTR SpiceModel MAX4310 TEXT -392 552 Left 0 !.TRAN 100n TEXT -392 496 Left 0 ;.AC DEC 100 1K 1G TEXT -392 520 Left 0 ;.NOISE V(out) V1 dec 100 1 1G TEXT -160 -96 Left 0 ;The opamp symbol "opamp5" is uded from the LTSPICE [var] selection box.\nPlace it on your schematic.\n Right mouse click on it and change model Mark it also visible.\n \nYou can change the value MAX477 to any other 5-pin opamp in the \nmaxims_opamp5.lib file. To be precise, to any with the pin-order \n+in, -in, V+, V-, out .