Version 4
SHEET 1 880 680
WIRE 192 0 32 0
WIRE 288 0 192 0
WIRE 320 0 288 0
WIRE 240 32 -48 32
WIRE 320 48 320 0
WIRE -144 96 -160 96
WIRE 0 96 -64 96
WIRE 32 96 32 0
WIRE 32 96 0 96
WIRE 64 96 32 96
WIRE 240 96 240 32
WIRE 240 96 144 96
WIRE 192 128 192 0
WIRE 0 144 0 96
WIRE 240 144 240 96
WIRE -48 160 -48 32
WIRE -32 160 -48 160
WIRE 320 160 320 128
WIRE 320 160 304 160
WIRE -160 176 -160 96
WIRE 48 176 32 176
WIRE -32 192 -48 192
WIRE 320 192 320 160
WIRE -48 240 -48 192
WIRE 304 240 304 160
WIRE 304 240 -48 240
WIRE -160 272 -160 240
WIRE -128 272 -160 272
WIRE 0 272 0 208
WIRE 0 272 -128 272
WIRE 160 272 0 272
WIRE 192 272 192 224
WIRE 192 272 160 272
WIRE 240 272 240 208
WIRE 240 272 192 272
WIRE 320 272 240 272
WIRE 160 288 160 272
WIRE -128 304 -128 272
FLAG -128 304 0
FLAG 288 0 reg
FLAG -160 96 in
SYMBOL res 304 32 R0
SYMATTR InstName R1
SYMATTR Value 1.8k
SYMBOL res 304 176 R0
SYMATTR InstName R2
SYMATTR Value 5k
SYMBOL res -48 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1
SYMBOL Misc\\cell -160 176 R0
WINDOW 3 55 151 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 2.8 100m 4.8)
SYMBOL Opamps\\LT1886 0 112 R0
WINDOW 3 -87 129 Left 2
SYMATTR InstName U2
SYMBOL res 160 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL References\\LT1009 240 176 R0
SYMATTR InstName U1
SYMBOL res 144 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL npn 128 128 R0
WINDOW 0 32 26 Left 2
WINDOW 3 22 57 Left 2
SYMATTR InstName Q1
SYMATTR Value 2N2222
TEXT -104 288 Left 2 !.tran 100m