Version 4
SHEET 1 880 1572
WIRE 384 -176 -208 -176
WIRE -592 -144 -1552 -144
WIRE -592 -64 -592 -144
WIRE -1088 -16 -1152 -16
WIRE -928 -16 -1024 -16
WIRE -592 -16 -592 -64
WIRE -1552 0 -1552 -144
WIRE 384 96 384 -176
WIRE -1152 112 -1152 -16
WIRE -1152 112 -1296 112
WIRE -1072 112 -1152 112
WIRE -928 112 -928 -16
WIRE -928 112 -976 112
WIRE -592 112 -592 64
WIRE -208 112 -208 -176
WIRE -1552 144 -1552 80
WIRE -1152 144 -1152 112
WIRE -752 144 -816 144
WIRE 192 176 80 176
WIRE 336 176 192 176
WIRE -1296 192 -1296 112
WIRE -928 192 -928 112
WIRE -928 192 -1104 192
WIRE -848 192 -928 192
WIRE -816 192 -816 144
WIRE -816 192 -848 192
WIRE -800 192 -816 192
WIRE -752 192 -752 144
WIRE -592 192 -592 112
WIRE -592 192 -704 192
WIRE -1152 208 -1152 144
WIRE -1104 224 -1104 192
WIRE 384 256 384 192
WIRE -816 288 -816 192
WIRE -720 288 -720 240
WIRE -720 288 -816 288
WIRE 80 320 80 176
WIRE -1296 336 -1296 256
WIRE -1152 336 -1152 304
WIRE -1152 336 -1296 336
WIRE -1056 336 -1056 160
WIRE -1056 336 -1152 336
WIRE -960 336 -1056 336
WIRE -1056 432 -1056 336
WIRE -208 448 -208 192
WIRE 80 448 80 400
WIRE 80 448 -208 448
WIRE 384 448 384 336
WIRE 384 448 80 448
WIRE -208 480 -208 448
WIRE -816 560 -816 288
WIRE -592 576 -592 192
WIRE -736 608 -816 608
WIRE -1392 640 -1568 640
WIRE -1360 640 -1392 640
WIRE -1248 640 -1280 640
WIRE -1216 640 -1248 640
WIRE -1120 640 -1136 640
WIRE -1056 640 -1056 512
WIRE -1056 640 -1120 640
WIRE -864 640 -1056 640
WIRE -1056 672 -1056 640
WIRE -816 672 -816 656
WIRE -736 672 -736 608
WIRE -736 672 -816 672
WIRE -1568 688 -1568 640
WIRE -1056 800 -1056 736
WIRE -816 800 -816 672
WIRE -816 800 -1056 800
WIRE -592 800 -592 640
WIRE -592 800 -816 800
WIRE -1568 816 -1568 768
WIRE -816 816 -816 800
WIRE -816 928 -816 896
WIRE -816 976 -816 928
WIRE -816 1088 -816 1056
WIRE -816 1200 -816 1088
WIRE -816 1296 -816 1280
FLAG -208 480 0
FLAG -592 -64 3
FLAG -816 1088 2
FLAG -1392 640 1
FLAG -816 928 5
FLAG -1120 640 99
FLAG -816 800 76
FLAG -592 112 97
FLAG -1248 640 95
FLAG -960 336 87
FLAG -848 192 98
FLAG -1152 144 8
FLAG -816 1296 0
FLAG -208 -176 VCC
FLAG 192 176 G
FLAG -1568 816 0
FLAG -1552 144 0
SYMBOL voltage -208 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL res 368 240 R0
SYMATTR InstName R1
SYMATTR Value 999k
SYMBOL voltage 80 304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL nmos 336 96 R0
SYMATTR InstName M1
SYMATTR Value BSP-149
SYMATTR Prefix X
SYMBOL ind -832 960 R0
SYMATTR InstName LS
SYMATTR Value 7n
SYMATTR SpiceLine Rser=0
SYMBOL ind -608 -32 R0
SYMATTR InstName LD
SYMATTR Value 3.5n
SYMATTR SpiceLine Rser=0
SYMBOL res -1232 656 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName RG
SYMATTR Value 5.5m
SYMBOL res -832 800 R0
SYMATTR InstName RS
SYMATTR Value 578m
SYMBOL diode -608 640 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D149
SYMATTR Value DREV
SYMBOL ind -1376 656 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName LG
SYMATTR Value 7n
SYMATTR SpiceLine Rser=0
SYMBOL cap -1072 672 R0
SYMATTR InstName CGS
SYMATTR Value 225p
SYMBOL cap -1312 192 R0
SYMATTR InstName COX
SYMATTR Value 0.08n
SYMBOL nmos4 -800 240 R270
SYMATTR InstName MHELP
SYMATTR Value MVRD
SYMBOL voltage -1056 416 R0
SYMATTR InstName VGC
SYMATTR Value 3
SYMBOL nmos -1104 304 R180
SYMATTR InstName M2
SYMATTR Value MSW
SYMBOL nmos -976 160 M270
SYMATTR InstName M3
SYMATTR Value MSW
SYMBOL diode -1088 0 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName DGD
SYMATTR Value DCGD
SYMBOL voltage -1568 672 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL voltage -1552 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 10
SYMBOL nmos4 -864 560 R0
SYMATTR InstName M4
SYMATTR Value MBUZ
SYMBOL res -832 1184 R0
SYMATTR InstName R2
SYMATTR Value 999k
TEXT -264 552 Left 2 !.tran 0 0.1 0 1m
TEXT -72 552 Left 2 !.step temp 20 80 20
TEXT 184 552 Left 2 ;.inc BSS_L0.lib
TEXT -304 640 Left 2 !*SRC=BSP-149;BSP-149;MOSFETs N;Depletion;200V 480mA 3.5 Ohm Siemens\n*SYM=DEPL-MOS\n*.SUBCKT BSP-149 1 2 3\n.SUBCKT BSP-149 3 1 2\nLS 5 2 7N\nLD 97 3 5N\nRG 95 99 5.5M\nRS 5 76 578M\nD149 76 97 DREV\n.MODEL DREV D CJO=0.03N RS=20M TT=35N IS=300P BV=200\nM149 98 99 76 76 MBUZ\n.MODEL MBUZ NMOS VTO=-1.334 KP=1.022\nM2 87 98 8 8 MSW\n.MODEL MSW NMOS VTO=0.001 KP=5\nM3 98 87 8 8 MSW\nCOX 87 8 0.08N\nDGD 8 98 DCGD\n.MODEL DCGD D CJO=59P M=0.542 VJ=0.979\nCGS 76 99 225P\nVGC 87 99 3\nMHELP 98 98 97 98 MVRD\n.MODEL MVRD NMOS VTO=-16.18 KP=0.34\nLG 95 1 7N\n.ENDS
TEXT -1528 1176 Left 2 !.MODEL DREV D CJO=0.03N RS=20M TT=35N IS=300P BV=200\n.MODEL MBUZ NMOS VTO=-1.334 KP=1.022\n.MODEL MSW NMOS VTO=0.001 KP=5\n.MODEL DCGD D CJO=59P M=0.542 VJ=0.979\n.MODEL MVRD NMOS VTO=-16.18 KP=0.34
RECTANGLE Normal -464 1120 -1440 -224 2