Version 4
SHEET 1 2680 680
WIRE -1728 -416 -1920 -416
WIRE -1584 -416 -1728 -416
WIRE -1264 -416 -1584 -416
WIRE -1728 -384 -1728 -416
WIRE -1264 -384 -1264 -416
WIRE -1920 -368 -1920 -416
WIRE -1920 -256 -1920 -288
WIRE -1504 -240 -1664 -240
WIRE -1456 -240 -1504 -240
WIRE -1264 -240 -1264 -304
WIRE -1264 -240 -1376 -240
WIRE -1504 -176 -1504 -240
WIRE -1584 -80 -1584 -416
WIRE -1872 -64 -1920 -64
WIRE -1664 -64 -1664 -240
WIRE -1664 -64 -1792 -64
WIRE -1616 -64 -1664 -64
WIRE -1264 -64 -1264 -240
WIRE -1504 -48 -1504 -112
WIRE -1504 -48 -1552 -48
WIRE -1456 -48 -1504 -48
WIRE -1312 -48 -1376 -48
WIRE -1728 -32 -1728 -304
WIRE -1616 -32 -1728 -32
WIRE -1920 48 -1920 -64
WIRE -1728 64 -1728 -32
WIRE -1264 64 -1264 32
WIRE -1920 176 -1920 128
WIRE -1728 176 -1728 144
WIRE -1584 176 -1584 -16
WIRE -1264 176 -1264 144
FLAG -1728 176 0
FLAG -1264 176 0
FLAG -1584 176 0
FLAG -1920 -256 0
FLAG -1920 176 0
SYMBOL Opamps\\LT1492 -1584 -112 R0
SYMATTR InstName U1
SYMBOL res -1744 -400 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -1744 48 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -1360 -256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res -1248 -288 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 1
SYMBOL res -1248 160 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 4
SYMBOL res -1472 -32 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 100
SYMBOL pmos -1312 32 M180
SYMATTR InstName M1
SYMBOL res -1776 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL voltage -1920 -384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 10V
SYMBOL voltage -1920 32 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 1V
SYMBOL cap -1520 -176 R0
SYMATTR InstName C1
SYMATTR Value 200p
TEXT -1954 200 Left 2 !.tran 500m