Version 4
SHEET 1 880 680
WIRE -16 -128 -64 -128
WIRE 96 -128 48 -128
WIRE -416 0 -544 0
WIRE -304 0 -416 0
WIRE -64 0 -64 -128
WIRE -64 0 -224 0
WIRE -32 0 -64 0
WIRE 96 0 96 -128
WIRE 96 0 48 0
WIRE 288 0 96 0
WIRE -624 32 -768 32
WIRE -544 32 -544 0
WIRE 400 32 192 32
WIRE -768 48 -768 32
WIRE -544 48 -544 32
WIRE -64 64 -64 0
WIRE 288 112 288 0
WIRE 320 112 288 112
WIRE -624 128 -768 128
WIRE -416 128 -544 128
WIRE 192 128 192 32
WIRE -64 144 -64 64
WIRE -32 144 -64 144
WIRE 112 144 48 144
WIRE 160 144 112 144
WIRE 400 144 400 112
WIRE 496 144 400 144
WIRE 288 160 288 112
WIRE 288 160 224 160
WIRE -416 176 -416 128
WIRE -304 176 -416 176
WIRE -112 176 -224 176
WIRE 160 176 112 176
WIRE 496 176 496 144
WIRE -112 208 -112 176
WIRE 112 208 112 176
WIRE 112 208 -112 208
WIRE 400 208 400 144
WIRE -112 240 -112 208
WIRE 192 288 192 192
WIRE 400 288 192 288
WIRE -112 352 -112 320
WIRE 320 384 320 112
WIRE 320 384 288 384
WIRE 400 384 320 384
WIRE 400 400 400 384
FLAG 496 176 0
FLAG -112 432 0
FLAG -416 64 0
FLAG -416 240 0
FLAG 112 144 inv
FLAG -64 64 fb
FLAG -768 48 0
FLAG -768 128 0
FLAG 288 464 0
FLAG 400 464 0
SYMBOL Opamps\\LT1632 192 96 R0
SYMATTR InstName U1
SYMBOL voltage 400 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 400 192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage 64 144 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 60 56 VTop 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 0
SYMATTR Value2 AC 0.1
SYMBOL res 64 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4.64k
SYMBOL res -208 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 46.4k
SYMBOL res -208 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 46.4k
SYMBOL res -96 336 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 4.64k
SYMBOL voltage -112 336 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 5
SYMBOL cap -432 0 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL cap -432 176 R0
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL res -528 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 4.64k
SYMBOL res -528 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 4.64k
SYMBOL res 272 368 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL cap 384 400 R0
SYMATTR InstName C3
SYMATTR Value 10p
SYMBOL cap 48 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 10p
TEXT -340 344 Left 2 !;tran 10m startup
TEXT -784 304 Left 2 !.ac oct 1000 0.1 50meg