Rainbow-electronics MAX5259 Manual do Utilizador descarregar pdf (Página 18)

MAX5258/MAX5259

Note: 1LSB = (V

REF

)

) = +V

REF

(1 / 256)

____________________Chip Information

TRANSISTOR COUNT: 13625

PROCESS: BiCMOS

+3V/+5V, Low-Power, 8-Bit Octal DAC

with Rail-to-Rail Output Buffers

18 ______________________________________________________________________________________

DAC A

REFERENCE INPUT

+3V

REF

DAC B

DAC C

DAC D

DAC E

DAC F

DAC G

DAC H

OUT A

OUT B

OUT C

OUT D

OUT E

OUT F

OUT G

OUT H

MAX5258/

MAX5259

Figure 11. Unipolar Output Circuit

DAC CONTENTS

MSB LSB

ANALOG OUTPUT

1111 1111 +V

REF

(255/256)

1000 0001 +V

REF

(129/256)

1000 0000

REF

(128/256) = +V

REF

0111 1111 +V

REF

(127/256)

0000 0001 +V

REF

(1/256)

0000 0000 0

Table 2. Unipolar Code Table

1 2 ... 13 14 15 16 17 18 19 20

MAX5258/MAX5259 1

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