Version 4
SHEET 1 896 680
WIRE 160 -144 -32 -144
WIRE 672 -144 496 -144
WIRE 160 -112 160 -144
WIRE 496 -64 496 -144
WIRE 160 32 160 -32
WIRE 400 32 160 32
WIRE 432 32 400 32
WIRE -32 64 -32 -144
WIRE 160 64 160 32
WIRE 496 112 496 16
WIRE 672 144 672 -144
WIRE 160 192 160 144
WIRE 160 224 160 192
WIRE 160 224 80 224
WIRE 208 224 160 224
WIRE 384 224 288 224
WIRE 160 256 160 224
WIRE 496 256 496 112
WIRE 80 304 80 224
WIRE 96 304 80 304
WIRE 192 304 176 304
WIRE 384 304 384 224
WIRE 432 304 384 304
WIRE 528 304 512 304
WIRE 192 352 192 304
WIRE 192 352 160 352
WIRE 528 352 528 304
WIRE 528 352 496 352
WIRE -32 384 -32 144
WIRE 160 384 160 352
WIRE 160 384 -32 384
WIRE 224 384 160 384
WIRE 496 384 496 352
WIRE 496 384 224 384
WIRE 672 384 672 224
WIRE 672 384 496 384
WIRE 224 400 224 384
FLAG 224 400 0
FLAG 400 32 UBIAS
FLAG 496 112 UOUT
FLAG 160 192 UA
SYMBOL voltage 672 128 R0
SYMATTR InstName VD
SYMATTR Value 3
SYMBOL AMScells\\n4 112 256 R0
SYMATTR InstName U1
SYMBOL AMScells\\n4 448 256 R0
SYMATTR InstName U4
SYMBOL current 160 -112 R0
SYMATTR InstName IREF
SYMATTR Value 10µ
SYMBOL voltage -32 48 R0
SYMATTR InstName VDD
SYMATTR Value 3
SYMBOL voltage 304 224 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName VD1
SYMATTR Value 0
SYMBOL res 144 48 R0
SYMATTR InstName R1
SYMATTR Value 18k
SYMBOL current 496 -64 R0
SYMATTR InstName ILD
SYMATTR Value 10.17µ
TEXT -32 456 Left 2 !.include C:/programs/LTspiceIV/lib/sub/AMSlev49.sub
TEXT -24 416 Left 2 !.dc VD1 -1m 1m 1u