Version 4
SHEET 1 1264 680
WIRE -880 -496 -880 -512
WIRE -688 -496 -688 -512
WIRE -496 -448 -512 -448
WIRE -416 -448 -432 -448
WIRE -320 -448 -336 -448
WIRE -272 -448 -320 -448
WIRE -160 -448 -192 -448
WIRE -880 -400 -880 -416
WIRE -688 -400 -688 -416
WIRE 64 -400 64 -416
WIRE -320 -352 -320 -448
WIRE -288 -352 -320 -352
WIRE -160 -336 -160 -448
WIRE -160 -336 -224 -336
WIRE -144 -336 -160 -336
WIRE -48 -336 -64 -336
WIRE 288 -336 176 -336
WIRE -384 -320 -880 -320
WIRE -288 -320 -384 -320
WIRE 288 -320 288 -336
WIRE -880 -304 -880 -320
WIRE -384 -304 -384 -320
WIRE -128 -240 -144 -240
WIRE -48 -240 -64 -240
WIRE 208 -240 176 -240
WIRE 288 -240 288 -256
WIRE -880 -208 -880 -224
WIRE -384 -208 -384 -224
WIRE 64 -160 64 -176
FLAG -880 -400 0
FLAG -880 -512 +V
FLAG 64 -416 +V
FLAG 208 -240 0
FLAG 288 -336 OUT
FLAG -688 -400 0
FLAG -688 -512 -V
FLAG 288 -240 0
FLAG 64 -160 -V
FLAG -144 -240 0
FLAG -256 -304 -V
FLAG -256 -368 +V
FLAG -512 -448 0
FLAG -880 -320 IN
FLAG -384 -208 0
FLAG -880 -208 0
SYMBOL voltage -880 -512 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 2.5
SYMBOL voltage -688 -512 R0
SYMATTR InstName V2
SYMATTR Value -2.5
SYMBOL cap 272 -320 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap -64 -256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL Opamps\\LT6203 -256 -336 R0
SYMATTR InstName U2
SYMBOL res -48 -352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL res -176 -464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res -320 -464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL cap -432 -464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1.5µ
SYMBOL current -880 -224 M180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 24 -42 Left 2
WINDOW 39 24 -21 Left 2
SYMATTR InstName I1
SYMATTR Value SINE(0 {Vrms/100*sqrt(2)} 10K)
SYMBOL res -400 -320 R0
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL SpecialFunctions\\LTC1968 64 -288 R0
SYMATTR InstName U1
TEXT 104 -136 Left 2 !.tran 150m\n.param Vrms=100u