Version 4
SHEET 1 880 680
WIRE 416 -112 -624 -112
WIRE 224 -16 224 -48
WIRE -352 48 -384 48
WIRE -224 48 -288 48
WIRE -480 64 -480 32
WIRE -32 80 -64 80
WIRE 96 80 48 80
WIRE 224 80 224 64
WIRE 304 80 224 80
WIRE 416 80 416 -112
WIRE 416 80 384 80
WIRE -304 176 -304 160
WIRE -624 192 -624 -112
WIRE -592 192 -624 192
WIRE -384 192 -384 48
WIRE -384 192 -512 192
WIRE -336 192 -384 192
WIRE 16 192 16 176
WIRE 320 192 320 176
WIRE -224 208 -224 48
WIRE -224 208 -272 208
WIRE -192 208 -224 208
WIRE -176 208 -192 208
WIRE -64 208 -64 80
WIRE -64 208 -96 208
WIRE -16 208 -64 208
WIRE 96 208 96 80
WIRE 144 208 96 208
WIRE 288 208 144 208
WIRE -480 224 -480 144
WIRE -432 224 -480 224
WIRE -336 224 -432 224
WIRE 96 224 96 208
WIRE 96 224 48 224
WIRE 416 224 416 80
WIRE 416 224 352 224
WIRE 448 224 416 224
WIRE -16 240 -48 240
WIRE 224 240 224 80
WIRE 288 240 224 240
WIRE -752 272 -752 240
WIRE -480 272 -480 224
WIRE -304 272 -304 240
WIRE 224 272 224 240
WIRE 16 288 16 256
WIRE 320 288 320 256
WIRE -752 384 -752 352
WIRE -480 384 -480 352
WIRE 224 384 224 352
FLAG 320 288 0
FLAG -304 272 0
FLAG 224 -48 +5V
FLAG 320 176 +5V
FLAG -304 160 +5V
FLAG -480 32 +5V
FLAG -480 384 0
FLAG 224 384 0
FLAG 448 224 r
FLAG 16 288 0
FLAG 16 176 +5V
FLAG -48 240 U2
FLAG -432 224 U2
FLAG -192 208 tr
FLAG -752 384 0
FLAG -752 240 +5V
FLAG 144 208 tri
SYMBOL res 208 -32 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 208 256 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 288 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res -608 208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 12k
SYMBOL cap -352 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res -496 48 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res -496 256 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res -48 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res -192 224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL voltage -752 256 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL Opamps\\LTC6241 -304 208 R0
SYMATTR InstName U1
SYMBOL Opamps\\LTC6241 16 224 R0
SYMATTR InstName U2
SYMBOL Opamps\\LTC6241 320 224 R0
SYMATTR InstName U3
TEXT -808 56 Left 2 !.tran 200u