Rainbow-electronics MAX5190 Manuel d'utilisateur télécharger pdf (Page 9)

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

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9.6kΩ*

0.1µF10µF

SET

REF

REFR

REFO

+1.21V

BANDGAP

REFERENCE

REN

CURRENT-

SOURCE ARRAY

EXTERNAL

+1.21V

REFERENCE

*9.6kΩ REFERENCE CURRENT SET RESISTOR

INTERNAL TO MAX5190 ONLY. USE EXTERNAL

SET

FOR MAX5188.

MAX5187

MAX5190

MAX6520

DGND

AGND

Figure 3. MAX5187/MAX5190 with External Reference

SET

9.6kΩ

SET

COMP

REFR

REF

REFO

MAX4040

+1.2V

BANDGAP

REFERENCE

CURRENT-

SOURCE ARRAY

*COMPENSATION CAPACITOR (C

COMP

= 100nF) **9.6kΩ REFERENCE CURRENT SET RESISTOR

INTERNAL TO MAX5190 ONLY. USE EXTERNAL

SET

FOR MAX5188.

OPTIONAL EXTERNAL BUFFER

FOR HEAVIER LOADS

REN

MAX5187

MAX5190

REF

SET

AGND

DGND

Figure 2. Setting I

with the Internal +1.2V Reference and the Control Amplifier

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

MAX5187/MAX5190 1

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Rainbow-electronics MAX5190 Manuel d'utilisateur Page 9

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