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AD5253BRU10 Datasheet(Fiches technique) 2 Page - Analog Devices

Numéro de pièce AD5253BRU10
Description  Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
Télécharger  32 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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AD5253BRU10 Datasheet(HTML) 2 Page - Analog Devices

 
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AD5253/AD5254
Data Sheet
Rev. C | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Electrical Characteristics ................................................................. 3
1 kΩ Version.................................................................................. 3
10 kΩ, 50 kΩ, 100 kΩ Versions .................................................. 5
Interface Timing Characteristics................................................ 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
I2C Interface..................................................................................... 14
I2C Interface General Description............................................ 14
I2C Interface Detail Description............................................... 15
I2C-Compatible 2-Wire Serial Bus........................................... 20
Theory of Operation ...................................................................... 21
Linear Increment/Decrement Commands ............................. 21
±6 dB Adjustments (Doubling/Halving Wiper Setting) ....... 21
Digital Input/Output Configuration........................................ 22
Multiple Devices on One Bus ................................................... 22
Terminal Voltage Operation Range ......................................... 23
Power-Up and Power-Down Sequences.................................. 23
Layout and Power Supply Biasing............................................ 23
Digital Potentiometer Operation ............................................. 24
Programmable Rheostat Operation......................................... 24
Programmable Potentiometer Operation ............................... 25
Applications Information .............................................................. 26
RGB LED Backlight Controller for LCD Panels .................... 26
Outline Dimensions....................................................................... 28
Ordering Guide .......................................................................... 29
REVISION HISTORY
9/12—Rev. B to Rev. C
Changed Temperature Range from –40°C to +85°C to –40°C
to +105°C (Throughout).................................................................. 1
Changed WP Leakage Current from 5 µA to 8 µA, Table 1........ 4
Changed WP Leakage Current from 5 µA to 8 µA, Table 2........ 5
Changes to Figure 11 and Figure 12............................................. 12
Changes to Ordering Guide .......................................................... 29
10/09—Rev. A to Rev. B
Change to Figure 27 ....................................................................... 15
9/05—Rev. 0 to Rev. A
Change to Figure 6 ......................................................................... 10
Change to EEMEM Write Protection Section............................ 18
Changes to Figure 37...................................................................... 22
Deleted Table 13 and Table 14 ...................................................... 24
Change to Figure 43 ....................................................................... 25
Changes to Ordering Guide.......................................................... 29
5/03—Revision 0: Initial Version


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