Version 4
SHEET 1 880 680
WIRE 176 -176 -208 -176
WIRE 176 -160 176 -176
WIRE -208 -144 -208 -176
WIRE 176 -64 176 -80
WIRE -416 0 -448 0
WIRE -368 0 -416 0
WIRE -160 0 -304 0
WIRE -128 0 -160 0
WIRE -16 0 -48 0
WIRE 0 0 -16 0
WIRE 48 0 0 0
WIRE 176 0 128 0
WIRE -448 80 -448 0
WIRE 112 112 112 96
WIRE 0 128 0 0
WIRE 80 128 0 128
WIRE 176 144 176 0
WIRE 176 144 144 144
WIRE 240 144 176 144
WIRE 304 144 240 144
WIRE -208 160 -208 -64
WIRE -160 160 -208 160
WIRE -96 160 -160 160
WIRE -16 160 -96 160
WIRE 80 160 -16 160
WIRE -448 176 -448 160
WIRE -208 192 -208 160
WIRE -96 192 -96 160
WIRE 112 224 112 176
WIRE -208 304 -208 256
WIRE -96 304 -96 272
FLAG 112 224 0
FLAG 176 -64 0
FLAG 112 96 V+
FLAG 176 -176 V+
FLAG -96 304 0
FLAG -208 304 0
FLAG -448 176 0
FLAG 304 144 out
FLAG -416 0 in
FLAG -16 0 1
FLAG -16 160 2
DATAFLAG 240 144 ""
DATAFLAG -160 160 ""
DATAFLAG -160 0 ""
SYMBOL voltage 176 -176 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL Opamps\\LT1001 112 80 R0
SYMATTR InstName U2
SYMBOL res 32 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL res -112 176 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res -224 -160 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res -144 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL cap -368 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap -224 192 R0
SYMATTR InstName C2
SYMATTR Value 100µ
SYMBOL voltage -448 64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 0.2 1k)
TEXT -456 -240 Left 2 !.tran 10m