Version 4
SHEET 1 880 680
WIRE 192 -48 16 -48
WIRE 432 -48 256 -48
WIRE 304 96 304 64
WIRE -112 112 -224 112
WIRE 16 112 16 -48
WIRE 16 112 -32 112
WIRE 48 112 16 112
WIRE 160 112 128 112
WIRE 272 112 160 112
WIRE 432 128 432 -48
WIRE 432 128 336 128
WIRE 544 128 432 128
WIRE 656 128 624 128
WIRE -448 144 -448 64
WIRE 272 144 240 144
WIRE 160 160 160 112
WIRE -224 176 -224 112
WIRE 16 176 16 112
WIRE 304 192 304 160
WIRE 368 192 304 192
WIRE 240 208 240 144
WIRE 432 208 432 128
WIRE 432 208 240 208
WIRE 656 224 656 128
WIRE -448 256 -448 224
WIRE -224 288 -224 256
WIRE 16 288 16 256
WIRE 160 288 160 224
WIRE -448 448 -448 384
FLAG 16 288 0
FLAG 160 288 0
FLAG 656 224 0
FLAG -224 288 0
FLAG -448 256 0
FLAG -448 64 V+
FLAG -448 448 0
FLAG -448 384 V-
FLAG 368 192 V+
FLAG 304 64 V-
SYMBOL res 144 96 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10E3
SYMBOL res -16 96 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 20E3
SYMBOL res 32 272 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R3
SYMATTR Value 20E3
SYMBOL cap 144 160 R0
SYMATTR InstName C1
SYMATTR Value 1E-12
SYMBOL cap 256 -64 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 1E-12
SYMBOL res 640 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 1E6
SYMBOL voltage -224 160 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value ""
SYMATTR Value2 AC 1.5
SYMBOL Opamps\\LT1006A 304 192 M180
SYMATTR InstName U1
SYMBOL voltage -448 128 R0
WINDOW 3 24 160 Left 0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 3.3
TEXT -282 432 Left 0 !.ac dec 100 10 1E6