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AD5252BRUZ100-RL7 Scheda tecnica(PDF) 2 Page - Analog Devices

Il numero della parte AD5252BRUZ100-RL7
Spiegazioni elettronici  Dual 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5252BRUZ100-RL7 Scheda tecnica(HTML) 2 Page - Analog Devices

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AD5251/AD5252
Data Sheet
Rev. D | Page 2 of 28
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 ......................................... 22
Power-Up and Power-Down Sequences.................................. 22
Layout and Power Supply Biasing............................................ 23
Digital Potentiometer Operation ............................................. 23
Programmable Rheostat Operation......................................... 23
Programmable Potentiometer Operation ............................... 24
Applications Information .............................................................. 25
LCD Panel VCOM Adjustment.................................................... 25
Current-Sensing Amplifier ....................................................... 25
Adjustable High Power LED Driver ........................................ 25
Outline Dimensions....................................................................... 26
Ordering Guide .......................................................................... 27
REVISION HISTORY
9/12—Rev. C to Rev. D
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............................................. 11
12/11—Rev. B to Rev. C
Changes to Theory of Operation Section.................................... 21
Changes to Ordering Guide .......................................................... 27
10/09—Rev. A to Rev. B
Changes to Figure 15...................................................................... 12
Changes to Figure 27...................................................................... 15
9/05—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Change to Figure 6 ......................................................................... 10
Changes to Figure 28...................................................................... 15
Changes to Figure 29...................................................................... 17
Changes to RDAC/EEMEM Quick Commands Section .......... 18
Changes to EEMEM Write Protection Section .......................... 18
Changes to Figure 37...................................................................... 22
Deleted Table 13 and Table 14 ...................................................... 23
Change to Figure 42 ....................................................................... 24
Change to Figure 46 ....................................................................... 25
Changes to Ordering Guide.......................................................... 27
6/04—Revision 0: Initial Version


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