Version 4
SHEET 1 2424 784
WIRE -624 -448 -624 -480
WIRE -144 -448 -624 -448
WIRE -624 -416 -624 -448
WIRE 48 -384 -208 -384
WIRE -144 -320 -144 -448
WIRE -624 -304 -624 -336
WIRE -240 -304 -624 -304
WIRE -208 -304 -208 -384
WIRE -176 -304 -208 -304
WIRE -624 -288 -624 -304
WIRE 48 -288 48 -384
WIRE 48 -288 -112 -288
WIRE -240 -272 -240 -304
WIRE -176 -272 -240 -272
WIRE 48 -224 48 -288
WIRE -624 -176 -624 -208
WIRE -544 -176 -624 -176
WIRE -144 -176 -144 -256
WIRE -144 -176 -544 -176
WIRE -624 -160 -624 -176
WIRE 544 -128 304 -128
WIRE 752 -128 608 -128
WIRE 1280 -128 1040 -128
WIRE 1488 -128 1344 -128
WIRE 1984 -112 1920 -112
WIRE 2144 -112 2048 -112
WIRE -544 -96 -544 -176
WIRE 512 -16 480 -16
WIRE 752 -16 752 -128
WIRE 752 -16 592 -16
WIRE 32 0 -16 0
WIRE 176 0 112 0
WIRE 1248 0 1216 0
WIRE 1488 0 1488 -128
WIRE 1488 0 1328 0
WIRE 1920 0 1920 -112
WIRE 1984 0 1920 0
WIRE 2144 0 2144 -112
WIRE 2144 0 2064 0
WIRE 64 128 64 96
WIRE -16 144 -16 0
WIRE 32 144 -16 144
WIRE 560 144 560 112
WIRE 176 160 176 0
WIRE 176 160 96 160
WIRE 208 160 176 160
WIRE 304 160 304 -128
WIRE 304 160 272 160
WIRE 368 160 304 160
WIRE 480 160 480 -16
WIRE 480 160 432 160
WIRE 528 160 480 160
WIRE 1296 160 1296 128
WIRE -528 176 -624 176
WIRE -416 176 -464 176
WIRE 32 176 -416 176
WIRE 752 176 752 -16
WIRE 752 176 592 176
WIRE 864 176 752 176
WIRE 1040 176 1040 -128
WIRE 1040 176 928 176
WIRE 1104 176 1040 176
WIRE 1216 176 1216 0
WIRE 1216 176 1168 176
WIRE 1264 176 1216 176
WIRE 528 192 480 192
WIRE 1488 192 1488 0
WIRE 1488 192 1328 192
WIRE 1584 192 1488 192
WIRE 1728 192 1648 192
WIRE 1920 192 1920 0
WIRE 1920 192 1808 192
WIRE 1984 192 1920 192
WIRE -624 208 -624 176
WIRE 1264 208 1216 208
WIRE 2144 208 2144 0
WIRE 2144 208 2048 208
WIRE 2192 208 2144 208
WIRE 2336 208 2272 208
WIRE 64 224 64 192
WIRE 304 224 304 160
WIRE 560 224 560 208
WIRE 1984 224 1936 224
WIRE -416 240 -416 176
WIRE -16 240 -16 144
WIRE 1040 240 1040 176
WIRE 1296 240 1296 224
WIRE 2016 256 2016 240
WIRE 480 272 480 192
WIRE 2336 272 2336 208
WIRE 1216 288 1216 208
WIRE 1936 288 1936 224
WIRE 304 368 304 304
WIRE -624 384 -624 288
WIRE -416 384 -416 320
WIRE -16 384 -16 320
WIRE 2336 384 2336 336
WIRE 1040 400 1040 320
WIRE -624 496 -624 464
FLAG -624 -480 3.3V
FLAG -624 -160 0V
FLAG -544 -96 0
FLAG 560 112 3.3V
FLAG 560 224 0V
FLAG 1296 128 3.3V
FLAG 1296 240 0V
FLAG 304 368 Ref
FLAG 480 272 Ref
FLAG 1040 400 Ref
FLAG 1216 288 Ref
FLAG 2016 176 3.3V
FLAG 2016 256 0V
FLAG 1936 288 Ref
FLAG 2336 384 Ref
FLAG 48 -224 Ref
FLAG -624 496 Ref
FLAG 64 96 3.3V
FLAG 64 224 0V
FLAG -416 384 Ref
FLAG -16 384 Ref
SYMBOL voltage -624 -432 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 44 Left 2
SYMATTR InstName V1
SYMATTR Value 1.65
SYMBOL voltage -624 -304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 1R
SYMBOL cap 608 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 15n
SYMBOL cap 272 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 15n
SYMBOL cap 432 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 15n
SYMBOL res 608 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL res 320 320 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 6k8
SYMBOL voltage -624 192 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -425 220 Left 2
SYMATTR Value2 AC 1V 0
SYMATTR Value SINE(0V 1mV 10kHz 0 0 0)
SYMATTR InstName V3
SYMBOL cap 1344 -144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 15n
SYMBOL cap 1168 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 15n
SYMBOL res 1344 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 20k
SYMBOL res 1056 336 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 2k7
SYMBOL cap 928 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 15n
SYMBOL Opamps\\LT1498 560 112 R0
SYMATTR InstName U3
SYMBOL Opamps\\LT1498 1296 128 R0
SYMATTR InstName U4
SYMBOL Opamps\\LT1498 -144 -352 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1498 2016 144 R0
SYMATTR InstName U2
SYMBOL res 2080 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 101k
SYMBOL res 2288 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL cap 2320 272 R0
SYMATTR InstName C7
SYMATTR Value 3n3
SYMBOL voltage -624 368 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -434 86 Left 2
SYMATTR Value2 AC 1V 0
SYMATTR Value SINE(0V 0.5V 100Hz 0 0 0)
SYMATTR InstName V4
SYMBOL Opamps\\LT1498 64 96 R0
SYMATTR InstName U5
SYMBOL cap -464 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 1n5
SYMBOL res -400 336 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R9
SYMATTR Value 100k
SYMBOL res 16 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL res -32 224 R0
SYMATTR InstName R11
SYMATTR Value 10k
SYMBOL cap 1648 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C10
SYMATTR Value 1µ
SYMBOL res 1824 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName 1k
SYMATTR Value 1k
SYMBOL cap 2048 -128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 100p
TEXT 592 464 Left 2 !;tran 0 13ms 10ms
TEXT 616 520 Left 2 !.ac dec 100 1 10000000