Version 4
SHEET 1 880 680
WIRE 224 128 192 128
WIRE 336 128 304 128
WIRE 96 176 96 144
WIRE 192 176 192 128
WIRE 192 176 160 176
WIRE 192 192 192 176
WIRE 224 192 192 192
WIRE 336 208 336 128
WIRE 336 208 288 208
WIRE 368 208 336 208
WIRE 480 208 448 208
WIRE 560 208 480 208
WIRE 224 224 192 224
WIRE 480 224 480 208
WIRE 96 240 96 176
WIRE 192 240 192 224
WIRE 192 240 176 240
WIRE 96 272 96 240
WIRE 192 288 192 240
WIRE 224 288 192 288
WIRE 336 288 336 208
WIRE 336 288 304 288
FLAG -48 176 V+
FLAG 256 176 V+
FLAG 96 64 V+
FLAG -48 256 0
FLAG 96 352 0
FLAG 256 240 0
FLAG 480 304 0
SYMBOL voltage -48 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 160 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL res 192 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1000k
SYMBOL res 320 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 320 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 80 48 R0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL res 80 256 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL res 464 208 R0
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL res 464 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 270k
SYMBOL Opamps\\LT1001 256 144 R0
SYMATTR InstName U1
TEXT -74 330 Left 2 !.tran .001