Version 4
SHEET 1 1876 680
WIRE 704 -112 368 -112
WIRE 368 -80 368 -112
WIRE 960 16 624 16
WIRE 368 48 368 0
WIRE 704 64 704 -112
WIRE 624 80 624 16
WIRE 672 80 624 80
WIRE 800 96 736 96
WIRE 960 96 960 16
WIRE 960 96 880 96
WIRE 1024 96 960 96
WIRE 1088 96 1024 96
WIRE -128 112 -288 112
WIRE -32 112 -128 112
WIRE 352 112 256 112
WIRE 384 112 352 112
WIRE 496 112 464 112
WIRE 592 112 496 112
WIRE 672 112 592 112
WIRE 1088 112 1088 96
WIRE 496 128 496 112
WIRE -288 144 -288 112
WIRE -128 176 -128 112
WIRE -32 176 -128 176
WIRE 352 176 352 112
WIRE 352 176 256 176
WIRE 960 224 960 96
WIRE 592 240 592 112
WIRE -288 272 -288 224
WIRE -128 272 -128 240
WIRE 112 288 112 208
WIRE 960 352 960 288
WIRE 1088 352 1088 192
WIRE 352 368 352 240
WIRE 496 368 496 208
WIRE 592 368 592 304
FLAG 112 288 0
FLAG -128 272 0
FLAG 352 368 0
FLAG -288 272 0
FLAG 496 368 0
FLAG 592 368 0
FLAG 704 128 0
FLAG 368 48 0
FLAG 960 352 0
FLAG 1088 352 0
FLAG 1024 96 V_OUT
SYMBOL References\\LTC6655-2.5 112 144 R0
SYMATTR InstName U1
SYMBOL cap 336 176 R0
SYMATTR InstName C2
SYMATTR Value 1µ
SYMBOL cap -144 176 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL voltage -288 128 R0
WINDOW 123 62 100 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL res 480 112 R0
SYMATTR InstName R2
SYMATTR Value 9.7k
SYMBOL res 480 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 28 54 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.3k
SYMBOL cap 576 240 R0
SYMATTR InstName C3
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=0.05 Rpar=1Meg
SYMBOL Opamps\\LT1128 704 32 R0
SYMATTR InstName U3
SYMBOL voltage 368 -96 R0
WINDOW 123 62 100 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL cap 944 224 R0
SYMATTR InstName C4
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=0.05 Rpar=1Meg
SYMBOL res 896 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 28 54 VTop 2
SYMATTR InstName R4
SYMATTR Value 3.3k
SYMBOL res 1072 96 R0
SYMATTR InstName R3
SYMATTR Value 7.5K
TEXT -304 16 Left 2 !.noise V(V_OUT) V1 dec 100 1m 100Meg