Version 4
SHEET 1 2152 680
WIRE 0 -176 0 -224
WIRE 112 -176 112 -224
WIRE 240 -176 240 -224
WIRE 352 -176 352 -224
WIRE 384 32 384 0
WIRE 192 48 -16 48
WIRE 352 48 256 48
WIRE 656 48 656 0
WIRE 1520 48 1520 16
WIRE 480 64 416 64
WIRE 624 64 480 64
WIRE 1488 64 1120 64
WIRE 1792 64 1792 16
WIRE 352 80 320 80
WIRE 752 80 688 80
WIRE 928 80 752 80
WIRE 944 80 928 80
WIRE 1616 80 1552 80
WIRE 1760 80 1616 80
WIRE -16 96 -16 48
WIRE 624 96 608 96
WIRE 1488 96 1456 96
WIRE 1888 96 1824 96
WIRE 2064 96 1888 96
WIRE 2080 96 2064 96
WIRE 480 112 480 64
WIRE 752 112 752 80
WIRE 1120 112 1120 64
WIRE 1760 112 1744 112
WIRE 1616 128 1616 80
WIRE 1888 128 1888 96
WIRE 384 144 384 96
WIRE 656 144 656 112
WIRE 1520 160 1520 112
WIRE 1792 160 1792 128
WIRE 944 192 944 160
WIRE 2080 208 2080 176
WIRE 320 224 320 80
WIRE 480 224 480 192
WIRE 480 224 320 224
WIRE 608 224 608 96
WIRE 752 224 752 192
WIRE 752 224 608 224
WIRE 1456 240 1456 96
WIRE 1616 240 1616 208
WIRE 1616 240 1456 240
WIRE 1744 240 1744 112
WIRE 1888 240 1888 208
WIRE 1888 240 1744 240
WIRE 480 256 480 224
WIRE 752 256 752 224
WIRE 1616 272 1616 240
WIRE 1888 272 1888 240
FLAG -16 176 0
FLAG 0 -96 0
FLAG 112 -96 0
FLAG 0 -224 pos
FLAG 112 -224 neg
FLAG 384 144 pos
FLAG 656 144 pos
FLAG 384 0 neg
FLAG 656 0 neg
FLAG 480 336 0
FLAG 752 336 0
FLAG 944 192 0
FLAG 928 80 out
FLAG 1120 192 0
FLAG 1520 160 pos1
FLAG 1792 160 pos1
FLAG 1520 16 neg1
FLAG 1792 16 neg1
FLAG 1616 352 0
FLAG 1888 352 0
FLAG 2080 208 0
FLAG 2064 96 out1
FLAG 240 -96 0
FLAG 352 -96 0
FLAG 240 -224 pos1
FLAG 352 -224 neg1
SYMBOL voltage -16 80 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value ""
SYMATTR Value2 AC 0m5
SYMBOL voltage 0 -192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage 112 -192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value -5
SYMBOL cap 256 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL Opamps\\LT6237 384 64 M180
SYMATTR InstName U1
SYMBOL Opamps\\LT6237 656 80 M180
SYMATTR InstName U2
SYMBOL res 464 96 R0
SYMATTR InstName R1
SYMATTR Value 120
SYMBOL res 464 240 R0
SYMATTR InstName R2
SYMATTR Value 12
SYMBOL res 736 96 R0
SYMATTR InstName R3
SYMATTR Value 120
SYMBOL res 736 240 R0
SYMATTR InstName R4
SYMATTR Value 12
SYMBOL res 928 64 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL voltage 1120 96 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value ""
SYMATTR Value2 AC 0m5
SYMBOL Opamps\\LT6237 1520 80 M180
SYMATTR InstName U3
SYMBOL Opamps\\LT6237 1792 96 M180
SYMATTR InstName U4
SYMBOL res 1600 112 R0
SYMATTR InstName R6
SYMATTR Value 120
SYMBOL res 1600 256 R0
SYMATTR InstName R7
SYMATTR Value 12
SYMBOL res 1872 112 R0
SYMATTR InstName R8
SYMATTR Value 120
SYMBOL res 1872 256 R0
SYMATTR InstName R9
SYMATTR Value 12
SYMBOL res 2064 80 R0
SYMATTR InstName R10
SYMATTR Value 100
SYMBOL voltage 240 -192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 5
SYMBOL voltage 352 -192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value -5
TEXT -24 376 Left 2 !.op\n.ac lin 100 100 1meg