Version 4
SHEET 1 880 680
WIRE 208 -208 144 -208
WIRE 496 -208 400 -208
WIRE 144 -160 144 -208
WIRE 496 -160 496 -208
WIRE 144 -48 144 -80
WIRE 496 -48 496 -80
WIRE 400 96 400 -208
WIRE 272 112 144 112
WIRE 208 144 208 -208
WIRE 144 160 144 112
WIRE 176 160 144 160
WIRE 272 176 272 112
WIRE 272 176 240 176
WIRE 352 176 272 176
WIRE 176 192 -144 192
WIRE -144 224 -144 192
WIRE 400 272 400 192
WIRE -144 320 -144 304
WIRE 144 368 144 336
WIRE 400 464 400 352
WIRE 144 480 144 448
WIRE 208 480 208 208
WIRE 208 480 144 480
FLAG 144 336 0
FLAG -144 320 0
FLAG 400 464 0
FLAG 496 -48 0
FLAG 144 -48 0
SYMBOL Opamps\\LT1028A 208 112 R0
SYMATTR InstName U1
SYMBOL voltage 144 352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -144 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 12 0 0 0 200u 400u)
SYMBOL res 384 256 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL nmos 352 96 R0
SYMATTR InstName M1
SYMATTR Value Si4820DY
SYMBOL voltage 496 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 24 44 Left 2
SYMATTR InstName V4
SYMATTR Value SINE(15 100m 10k)
SYMBOL voltage 144 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 15
TEXT -144 488 Left 2 !.tran 0.001