Version 4
SHEET 1 1684 1700
WIRE -208 80 -336 80
WIRE -16 80 -128 80
WIRE 96 80 -16 80
WIRE 176 80 96 80
WIRE -16 96 -16 80
WIRE -336 144 -336 80
WIRE 96 160 96 80
WIRE -16 192 -16 176
WIRE 64 192 -16 192
WIRE -16 208 -16 192
WIRE -336 304 -336 224
WIRE -16 304 -16 288
WIRE 96 304 96 224
FLAG -336 304 0
FLAG -336 80 in
FLAG 96 304 0
FLAG 176 80 vref25
IOPIN 176 80 Out
FLAG -16 304 0
SYMBOL res -224 96 R270
WINDOW 0 15 5 VTop 0
WINDOW 3 42 111 VBottom 0
SYMATTR InstName R3
SYMATTR Value 3.3k
SYMBOL voltage -336 128 R0
WINDOW 123 24 132 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 30 85 Left 0
SYMATTR Value 5
SYMATTR InstName V2
SYMBOL res -32 80 R0
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL res -32 192 R0
SYMATTR InstName R5
SYMATTR Value 104.3k
SYMBOL Robertugo\\xref3 80 160 R0
SYMATTR InstName U1
SYMATTR Value LM385
SYMATTR SpiceModel LM385
TEXT -336 -32 Left 0 !.op
TEXT -336 0 Left 0 ;.dc V1 1.35 11.25 0.01
TEXT -336 32 Left 0 !.step TEMP -55 125  15
TEXT -336 -168 Left 0 ;LM385 Test Schematic\nHelmut Sennewald  24.03.2007\n \nThe LM385 is made from the LT1004-1.2-model.\nIt's based on the schematic shown in the datasheet.
TEXT -64 -16 Left 0 ;* If the circuit has convergence problems,\n* use the following options.\n* .options itl1=500 itl2=500