Version 4
SHEET 1 1536 680
WIRE 160 -208 128 -208
WIRE 272 -208 224 -208
WIRE 480 -208 480 -224
WIRE 16 -112 -48 -112
WIRE 96 -112 16 -112
WIRE 128 -112 128 -208
WIRE 128 -112 96 -112
WIRE 160 -112 128 -112
WIRE 272 -112 272 -208
WIRE 272 -112 240 -112
WIRE 304 -112 272 -112
WIRE 368 -112 304 -112
WIRE 480 -112 480 -144
WIRE 480 -112 448 -112
WIRE 480 -80 480 -112
WIRE -48 -64 -48 -112
WIRE 16 -64 16 -112
WIRE 128 0 128 -112
WIRE 160 0 128 0
WIRE 304 16 224 16
WIRE 480 16 480 0
WIRE 480 16 304 16
WIRE 160 32 128 32
WIRE -48 48 -48 16
WIRE 16 48 16 0
WIRE 16 48 -48 48
WIRE -48 64 -48 48
WIRE 128 64 128 32
FLAG 64 240 0
FLAG 64 160 V+
FLAG 144 240 0
FLAG 144 160 V-
FLAG 192 -16 V+
FLAG 192 48 V-
FLAG 128 64 0
FLAG -48 64 0
FLAG 480 -224 0
FLAG 304 16 A
FLAG 304 -112 B
FLAG 96 -112 C
SYMBOL voltage 64 144 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage 144 144 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL res 256 -128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rf
SYMATTR Value 100k
SYMBOL cap 224 -224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName Cf
SYMATTR Value {Cc}
SYMBOL voltage 352 -112 R270
WINDOW 3 43 81 Left 2
WINDOW 123 44 25 VRight 2
WINDOW 39 0 0 Left 2
WINDOW 0 69 52 VLeft 2
SYMATTR Value ""
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMBOL res -64 -80 R0
WINDOW 0 -30 37 Left 2
WINDOW 3 -33 65 Left 2
SYMATTR InstName R1
SYMATTR Value 1G
SYMBOL cap 0 -64 R0
WINDOW 0 33 18 Left 2
WINDOW 3 29 55 Left 2
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL Opamps\\LT1122 192 -48 R0
SYMATTR InstName U1
SYMBOL ind 464 -96 R0
SYMATTR InstName L1
SYMATTR Value 1e6
SYMBOL cap 464 -208 R0
SYMATTR InstName C3
SYMATTR Value 1e6
TEXT 256 200 Left 2 !.ac oct 30 1 100meg
TEXT 256 232 Left 2 !.step param Cc list 1p 2p 10p