Version 4
SHEET 1 880 680
WIRE 416 -240 352 -240
WIRE 544 -240 480 -240
WIRE 352 -144 352 -240
WIRE 416 -144 352 -144
WIRE 544 -144 544 -240
WIRE 544 -144 496 -144
WIRE 448 -32 448 -48
WIRE 272 -16 96 -16
WIRE 352 -16 352 -144
WIRE 352 -16 272 -16
WIRE 416 -16 352 -16
WIRE 544 0 544 -144
WIRE 544 0 480 0
WIRE 576 0 544 0
WIRE 96 16 96 -16
WIRE 272 16 272 -16
WIRE 416 16 384 16
WIRE 384 48 384 16
WIRE 448 48 448 32
WIRE 96 128 96 96
WIRE 272 128 272 80
WIRE 96 272 96 256
WIRE 272 272 272 256
WIRE 96 368 96 352
WIRE 272 368 272 352
FLAG 96 128 0
FLAG 272 128 0
FLAG 272 368 0
FLAG 96 368 0
FLAG 96 256 +V
FLAG 448 -48 +V
FLAG 448 48 -V
FLAG 272 256 -V
FLAG 576 0 out
FLAG 384 48 0
SYMBOL voltage 96 256 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage 272 256 R0
SYMATTR InstName V2
SYMATTR Value -5
SYMBOL Opamps\\opamp2 448 -64 R0
SYMATTR InstName U1
SYMATTR Value LMH6612
SYMBOL cap 256 16 R0
SYMATTR InstName C1
SYMATTR Value 5p
SYMBOL res 400 -128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL current 96 96 M180
WINDOW 0 24 80 Left 2
WINDOW 3 -3 -76 Left 2
WINDOW 123 24 -28 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value PULSE(0 1u 0 10n 10n 115n 250n)
SYMATTR Value2 AC 10u
SYMBOL cap 416 -224 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value {C2}
TEXT 56 -304 Left 2 !.ac dec 100 1k 10Meg
TEXT 56 -424 Left 2 !.inc LMH6612.MOD
TEXT 56 -272 Left 2 ;.tran 1u
TEXT 56 -344 Left 2 !.step param C2 list 0.3p 0.4p 0.5p
TEXT 56 -376 Left 2 !.param C2=0.33p