Version 4 SHEET 1 1536 1048 WIRE 144 -80 -464 -80 WIRE 192 -80 144 -80 WIRE -464 0 -464 -80 WIRE 192 0 192 -80 WIRE 448 48 320 48 WIRE 784 48 448 48 WIRE 624 96 512 96 WIRE 784 96 784 48 WIRE 784 96 688 96 WIRE -464 112 -464 80 WIRE 448 144 448 48 WIRE 448 144 384 144 WIRE -112 176 -768 176 WIRE 32 176 -112 176 WIRE 448 176 400 176 WIRE 512 176 512 96 WIRE 512 176 448 176 WIRE 656 192 656 176 WIRE -768 208 -768 176 WIRE 656 224 656 192 WIRE 512 240 512 176 WIRE 624 240 512 240 WIRE 784 256 784 96 WIRE 784 256 688 256 WIRE 864 256 784 256 WIRE 560 272 512 272 WIRE 624 272 560 272 WIRE -768 320 -768 288 WIRE 656 320 656 288 WIRE -448 336 -448 304 WIRE -272 336 -272 304 WIRE 656 352 656 320 WIRE 192 416 192 352 WIRE 368 512 368 464 WIRE 528 512 528 464 WIRE 688 512 688 464 WIRE 368 624 368 592 WIRE 528 624 528 592 WIRE 688 624 688 592 FLAG -464 112 0 FLAG 144 -80 VDD FLAG 192 416 0 FLAG 864 256 Vout FLAG 688 624 0 FLAG 688 464 VREF FLAG -768 320 0 FLAG 528 624 0 FLAG 528 464 V+ FLAG 368 624 0 FLAG 368 464 V- FLAG 560 272 VREF FLAG 656 192 V+ FLAG 656 320 V- FLAG -448 336 0 FLAG -272 336 0 FLAG 448 176 inm FLAG -112 176 dac_ip SYMBOL voltage 688 496 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 2.5 SYMBOL voltage -464 -16 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL voltage -768 192 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value SINE(1.25 1.25 1MEG) SYMBOL voltage 528 496 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V4 SYMATTR Value 12 SYMBOL voltage 368 496 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V5 SYMATTR Value -12 SYMBOL voltage -448 208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V6 SYMATTR Value 0 SYMBOL voltage -272 208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V7 SYMATTR Value PWL(0 0 2u 0 +1n 2.5) SYMBOL Opamps\\AD8065 656 192 R0 SYMATTR InstName U2 SYMBOL cap 688 80 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 4.7p SYMBOL DAC\\AD3552R 192 176 R0 SYMATTR InstName U3 TEXT -504 536 Left 2 !.tran 0 5u 0 1n TEXT -504 584 Left 2 ;.noise V(Vout) V3 dec 10 0.1 1g TEXT -504 480 Left 2 ;VDAC input should be within the range 0 to 2.5V TEXT -576 -304 Left 2 ;Range RFB GAIN_SCALING_P GAIN_SCALING_N OFFSET_POLARITY OFFSET\n0 to 2.5V 1x 0 3 -1 48\n0 to 5V 1x 0 0 X 0\n0 to 10V 2x 0 0 1 496\n-5 to 5V 2x 0 0 -1 496\n-10 to 10V 4x 0 0 -1 247