Datasheet > AD5255BRU250-RL7

AD5255BRU250-RL7

更新时间： 2024-02-16 06:39:34

品牌	Logo	应用领域
亚德诺 - ADI		电位器存储
页数	文件大小	规格书
20页	824K
描述
3-Channel Digital Potentiometer with Nonvolatile Memory

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AD5255BRU250-RL7 数据手册

AD5255

TABLE OF CONTENTS

Electrical Characteristics ................................................................. 3

Digital Input/Output Configuration........................................ 16

Multiple Devices on One Bus ................................................... 16

Level Shift for Bidirectional Communication........................ 16

Terminal Voltage Operation Range ......................................... 16

Power-Up Sequence ................................................................... 17

Layout and Power Supply Biasing............................................ 17

RDAC Structure.......................................................................... 17

Calculating the Programmable Resistance ............................. 17

Programming the Potentiometer Divider............................... 18

Applications..................................................................................... 19

Laser Diode Driver (LDD) Calibration................................... 19

Outline Dimensions....................................................................... 20

Ordering Guide .......................................................................... 20

Electrical Characteristics ................................................................. 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

Interface Descriptions.................................................................... 10

I²C Interface ................................................................................ 10

EEPROM Interface..................................................................... 11

RDAC I²C Interface.................................................................... 12

Theory of Operation ...................................................................... 15

Linear Increment and Decrement Commands ...................... 15

Logarithmic Taper Mode Adjustment (±6 dB/step) .............. 15

Using Additional Internal Nonvolatile EEPROM.................. 16

REVISION HISTORY

7/04—Revision 0: Initial Version

Rev. 0 | Page 2 of 20

123 4 5 6 7...20

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