Version 4
SHEET 1 1348 680
WIRE 416 -192 368 -192
WIRE 544 -192 480 -192
WIRE 368 -64 368 -192
WIRE 416 -64 368 -64
WIRE 544 -64 544 -192
WIRE 544 -64 496 -64
WIRE -32 -48 -32 -80
WIRE -32 64 -32 32
WIRE 448 160 448 128
WIRE 112 176 -32 176
WIRE 224 176 112 176
WIRE 368 176 368 -64
WIRE 368 176 224 176
WIRE 416 176 368 176
WIRE 544 192 544 -64
WIRE 544 192 480 192
WIRE 592 192 544 192
WIRE 656 192 592 192
WIRE -32 208 -32 176
WIRE 224 208 224 176
WIRE 416 208 368 208
WIRE 112 224 112 176
WIRE 368 256 368 208
WIRE 448 256 448 224
WIRE -32 320 -32 288
WIRE 112 320 112 288
WIRE 112 320 -32 320
WIRE 224 320 224 288
WIRE 224 320 112 320
WIRE 112 336 112 320
FLAG 448 256 0
FLAG 112 336 0
FLAG -32 64 0
FLAG 656 192 OUT
IOPIN 656 192 Out
FLAG 368 256 0
FLAG 448 128 +V
FLAG -32 -80 +V
DATAFLAG 592 192 "round($*10k)/10k"
SYMBOL cap 96 224 R0
SYMATTR InstName C1
SYMATTR Value 580p
SYMBOL res 208 192 R0
WINDOW 3 43 76 Left 2
SYMATTR Value 1.25G
SYMATTR InstName R1
SYMBOL cap 480 -208 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 48 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 15p
SYMBOL res 400 -48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL current -32 208 R0
WINDOW 0 24 -3 Left 2
WINDOW 3 -26 161 Left 2
WINDOW 123 22 88 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value PWL(0 3u 1u 0 1m 0 1.001m 3µ 10m 3µ 10.001m 0)
SYMATTR Value2 AC 1u
SYMBOL Opamps\\LTC2054 448 192 R0
SYMATTR InstName U2
SYMBOL voltage -32 -64 R0
SYMATTR InstName V1
SYMATTR Value 5
TEXT -16 -224 Left 2 ;.tran 15m
TEXT -16 -272 Left 2 !.ac dec 100 1 100k