Version 4
SHEET 1 880 680
WIRE 128 -16 64 -16
WIRE 256 -16 208 -16
WIRE 304 -16 256 -16
WIRE 432 -16 384 -16
WIRE -80 16 -80 -16
WIRE 64 32 64 -16
WIRE 368 32 368 -64
WIRE 368 32 320 32
WIRE 320 48 320 32
WIRE 256 64 256 -16
WIRE 304 64 256 64
WIRE 432 80 432 -16
WIRE 432 80 368 80
WIRE 304 96 256 96
WIRE -80 112 -80 96
WIRE -80 112 -128 112
WIRE -128 128 -128 112
WIRE 144 128 64 128
WIRE 256 128 256 96
WIRE 256 128 224 128
WIRE 320 128 320 112
WIRE 336 128 336 112
WIRE 336 128 320 128
WIRE -80 144 -80 112
WIRE 256 160 256 128
WIRE 320 176 320 128
WIRE 64 208 64 128
WIRE -80 272 -80 224
WIRE 256 272 256 224
WIRE 64 336 64 288
FLAG -128 128 0
FLAG -80 -16 5V
IOPIN -80 -16 BiDir
FLAG -80 272 -5V
IOPIN -80 272 BiDir
FLAG 368 -64 5V
IOPIN 368 -64 BiDir
FLAG 256 272 0
FLAG 64 336 0
FLAG 320 176 -5V
IOPIN 320 176 BiDir
FLAG 64 32 0
SYMBOL voltage 64 192 R0
WINDOW 3 -64 232 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 1 10k 0 0 0 100)
SYMATTR InstName V1
SYMBOL voltage -80 0 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -80 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res 240 112 R90
WINDOW 0 66 72 VBottom 0
WINDOW 3 71 75 VTop 0
SYMATTR InstName R3
SYMATTR Value 2k
SYMBOL cap 240 160 R0
SYMATTR InstName C1
SYMATTR Value 5n
SYMBOL Opamps\\LT1028N 336 16 R0
SYMATTR InstName U2
SYMBOL res 224 -32 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 400 -32 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 0.5
TEXT -152 448 Left 0 !.tran 1E-3