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AD5241BRZ100 Datasheet(Fiches technique) 2 Page - Analog Devices

Numéro de pièce AD5241BRZ100
Description  I2C-Compatible, 256-Position Digital Potentiometers
Télécharger  20 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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 2 page
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AD5241/AD5242
Rev. C | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
 
Applications....................................................................................... 1
 
Functional Block Diagram .............................................................. 1
 
General Description ......................................................................... 1
 
Revision History ............................................................................... 2
 
Specifications..................................................................................... 3
 
10 kΩ, 100 kΩ, 1 MΩ Version .................................................... 3
 
Timing Diagrams.......................................................................... 5
 
Absolute Maximum Ratings............................................................ 6
 
ESD Caution.................................................................................. 6
 
Pin Configurations and Function Descriptions ........................... 7
 
Typical Performance Characteristics ............................................. 8
 
Test Circuits..................................................................................... 11
 
Theory of Operation ...................................................................... 12
 
Programming the Variable Resistor......................................... 12
 
Programming the Potentiometer Divider............................... 13
 
Digital Interface.......................................................................... 13
 
Readback RDAC Value .............................................................. 14
 
Multiple Devices on One Bus ................................................... 14
 
Level-Shift for Bidirectional Interface ..................................... 14
 
Additional Programmable Logic Output ................................ 15
 
Shutdown Function.................................................................... 15
 
Outline Dimensions ....................................................................... 16
 
Ordering Guide .......................................................................... 18
 
REVISION HISTORY
12/09—Rev. B to Rev. C
Changes to Features Section............................................................ 1
Changes to 10 kΩ, 100 kΩ, 1 MΩ Version Section...................... 3
Changes to Table 3............................................................................ 6
Deleted Digital Potentiometer Selection Guide Section ........... 14
Changed Self-Contained Shutdown Function Section to
Shutdown Function Section .......................................................... 15
Changes to Shutdown Function Section ..................................... 15
Changes to Ordering Guide .......................................................... 18
8/02—Rev. A to Rev. B
Additions to Features ....................................................................... 1
Changes to General Description .................................................... 1
Changes to Specifications ................................................................ 2
Changes to Absolute Maximum Ratings ....................................... 4
Additions to Ordering Guide.......................................................... 4
Changes to TPC 8 and TPC 9 ......................................................... 8
Changes to Readback RDAC Value Section................................ 11
Changes to Additional Programmable Logic Output Section.. 11
Added Self-Contained Shutdown Section................................... 12
Added Figure 8................................................................................ 12
Changes to Digital Potentiometer Selection Guide ................... 14
2/02—Rev. 0 to Rev. A
Edits to Features.................................................................................1
Edits to Functional Block Diagrams ...............................................1
Edits to Absolute Maximum Ratings ..............................................4
Changes to Ordering Guide .............................................................4
Edits to Pin Function Descriptions.................................................5
Edits to Figures 1, 2, 3 .......................................................................6
Added Readback RDAC Value Section, Additional
Programmable Logic Output Section, and Figure 7;
Renumbered Sequentially ............................................................. 11
Changes to Digital Potentiometer Selection Guide ................... 14




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