Version 4
SHEET 1 880 680
WIRE 48 -416 -320 -416
WIRE -320 -400 -320 -416
WIRE -768 -336 -1216 -336
WIRE -640 -336 -704 -336
WIRE -224 -320 -224 -448
WIRE -768 -304 -800 -304
WIRE -544 -304 -576 -304
WIRE -448 -304 -480 -304
WIRE -320 -304 -320 -320
WIRE -320 -304 -368 -304
WIRE -272 -304 -320 -304
WIRE 48 -288 48 -416
WIRE -1328 -272 -1328 -288
WIRE -752 -272 -752 -288
WIRE -1360 -256 -1424 -256
WIRE -1216 -240 -1216 -336
WIRE -1216 -240 -1296 -240
WIRE -912 -240 -912 -256
WIRE -1360 -224 -1392 -224
WIRE -1216 -224 -1216 -240
WIRE -1200 -224 -1216 -224
WIRE -1104 -224 -1120 -224
WIRE -944 -224 -1104 -224
WIRE -1104 -208 -1104 -224
WIRE -800 -208 -800 -304
WIRE -800 -208 -880 -208
WIRE -1328 -192 -1328 -208
WIRE -944 -192 -992 -192
WIRE -912 -160 -912 -176
WIRE -1104 -128 -1104 -144
WIRE -224 -96 -224 -224
WIRE -1328 -80 -1328 -96
WIRE -1536 -64 -1888 -64
WIRE -1392 -64 -1392 -224
WIRE -1392 -64 -1536 -64
WIRE -1360 -64 -1392 -64
WIRE -1888 -48 -1888 -64
WIRE -1536 -48 -1536 -64
WIRE -1216 -48 -1296 -48
WIRE -1424 -32 -1424 -256
WIRE -1360 -32 -1424 -32
WIRE -1216 -16 -1216 -48
WIRE -800 -16 -1216 -16
WIRE -1328 0 -1328 -16
WIRE -432 0 -512 0
WIRE -224 0 -224 -16
WIRE -224 0 -352 0
WIRE -96 0 -224 0
WIRE 16 0 -16 0
WIRE 160 0 96 0
WIRE -224 16 -224 0
WIRE 160 32 160 0
WIRE -1888 48 -1888 32
WIRE -1536 48 -1536 32
WIRE -1424 48 -1424 -32
WIRE -992 48 -992 -192
WIRE -992 48 -1424 48
WIRE -512 48 -512 0
WIRE -1424 128 -1424 48
WIRE -224 128 -224 96
WIRE 160 128 160 96
WIRE -576 144 -576 -304
WIRE -576 144 -672 144
WIRE -1568 176 -1568 160
WIRE -800 208 -800 -16
WIRE -768 208 -800 208
WIRE -640 208 -640 -336
WIRE -400 208 -640 208
WIRE -304 208 -320 208
WIRE -272 208 -304 208
WIRE -1424 224 -1424 208
WIRE -768 240 -800 240
WIRE -672 240 -672 144
WIRE -672 240 -704 240
WIRE -304 240 -304 208
WIRE -912 256 -912 240
WIRE 160 256 160 208
WIRE -1568 272 -1568 256
WIRE -1216 272 -1216 -16
WIRE -1200 272 -1216 272
WIRE -1104 272 -1120 272
WIRE -944 272 -1104 272
WIRE -752 272 -752 256
WIRE -1104 288 -1104 272
WIRE -800 288 -800 240
WIRE -800 288 -880 288
WIRE -992 304 -992 48
WIRE -944 304 -992 304
WIRE -912 336 -912 320
WIRE -1104 368 -1104 352
WIRE -304 368 -304 320
WIRE -224 368 -224 224
WIRE -224 368 -304 368
WIRE -1616 400 -1680 400
WIRE -1440 400 -1536 400
WIRE -1808 432 -1808 416
WIRE -1680 432 -1680 400
WIRE -1440 432 -1440 400
WIRE -1680 528 -1680 512
WIRE -1440 528 -1440 496
WIRE -1440 528 -1680 528
FLAG -1568 272 0
FLAG -1568 160 +V
FLAG -752 272 0
FLAG -912 240 0
FLAG -912 336 +V
FLAG -1424 224 0
FLAG -1536 48 0
FLAG -1104 368 0
FLAG -1888 -64 IN
FLAG -1328 -96 +V
FLAG -1328 0 0
FLAG -1888 48 0
FLAG -752 -272 0
FLAG -912 -256 0
FLAG -912 -160 +V
FLAG -1104 -128 0
FLAG -1328 -288 +V
FLAG -1328 -192 0
FLAG -224 -448 Vss2+
FLAG -224 368 Vss2-
FLAG 160 256 0
FLAG -512 112 0
FLAG 48 -208 0
FLAG -1808 512 0
FLAG -1808 416 Vss2-
FLAG -1440 400 Vss2+
FLAG -1680 528 0
SYMBOL LT1721 -1328 -112 R0
SYMATTR InstName U1
SYMBOL LT1721 -912 352 M180
SYMATTR InstName U2
SYMBOL and -736 160 R0
SYMATTR InstName A1
SYMATTR SpiceLine2 Vhigh=10 Vlow=-5 Ref=1.5
SYMBOL voltage -1568 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -1424 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 2.5
SYMBOL res -1552 -64 R0
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL res -1104 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 560
SYMBOL cap -1120 288 R0
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL voltage -1888 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(2.5 1 28000k 0 0 210)
SYMBOL LT1721 -912 -144 M180
SYMATTR InstName U3
SYMBOL and -736 -384 R0
SYMATTR InstName A2
SYMATTR SpiceLine2 Vhigh=10 Vlow=-5 Ref=1.5
SYMBOL res -1104 -240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 560
SYMBOL cap -1120 -208 R0
SYMATTR InstName C2
SYMATTR Value 10p
SYMBOL LT1721 -1328 -304 R0
SYMATTR InstName U4
SYMBOL nmos -272 128 R0
SYMATTR InstName M1
SYMATTR Value FDS6961A
SYMBOL res -320 224 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res -304 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1
SYMBOL res -336 -416 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL res -352 -320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1
SYMBOL ind -336 -16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L1
SYMATTR Value 500n
SYMATTR SpiceLine Rser=10m
SYMBOL res -240 -112 R0
SYMATTR InstName R8
SYMATTR Value 1m
SYMBOL res -240 0 R0
SYMATTR InstName R9
SYMATTR Value 1m
SYMBOL res 0 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 11
SYMBOL ind 112 -16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L2
SYMATTR Value 15n
SYMBOL cap 144 32 R0
SYMATTR InstName C3
SYMATTR Value 820p
SYMBOL ind 144 112 R0
SYMATTR InstName L3
SYMATTR Value 9n
SYMBOL cap -528 48 R0
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL pmos -272 -224 M180
SYMATTR InstName M2
SYMATTR Value FDS4953
SYMBOL cap -480 -320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL voltage 48 -304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 10
SYMBOL voltage -1808 416 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value -5
SYMBOL voltage -1680 416 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value 20
SYMBOL res -1520 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 0.1
SYMBOL cap -1456 432 R0
SYMATTR InstName C7
SYMATTR Value 10µ
TEXT -1224 472 Left 2 !.tran 28m
TEXT -1224 504 Left 2 !;ac lin 10000k 1k 20000k