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參數(shù)資料
| 型號： | AD5170EVAL |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字電位計(jì) |
| 英文描述： | 256-Position Two-Time Programmable I2C Digital Potentiometer |
| 中文描述： | 256位二時(shí)間的I2C可編程數(shù)字電位器 |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 900K |
| 代理商： | AD5170EVAL |
AD5170
TABLE OF CONTENTS
Rev. A | Page 2 of 24
Electrical Characteristics — 2.5 k...............................................3
Electrical Characteristics — 10 k, 50 k, 100 k Versions.....4
Timing Characteristics — 2.5 k, 10 k, 50 k, 100 k
Versions..............................................................................................5
Absolute Maximum Ratings............................................................6
ESD Caution..................................................................................6
Typical Performance Characteristics.............................................7
Test Circuits.....................................................................................11
Theory of Operation......................................................................12
One-Time Programming (OTP)..............................................12
Programming the Variable Resistor and Voltage...................12
Programming the Potentiometer Divider...............................13
ESD Protection ...........................................................................14
Terminal Voltage Operating Range ......................................... 14
Power-Up Sequence................................................................... 14
Power Supply Considerations................................................... 14
Layout Considerations............................................................... 15
Evaluation Software/Hardware..................................................... 16
Software Programming ............................................................. 16
I
2
C Interface .................................................................................... 18
I
2
C Compatible 2-Wire Serial Bus ........................................... 20
Pin Configuration and Function Descriptions........................... 22
Outline Dimensions....................................................................... 23
Ordering Guide .......................................................................... 23
REVISION HISTORY
11/04—Data Sheet Changed from Rev. 0 to Rev. A
Changes to Electrical Characteristics Table 1............................... 3
Changes to Electrical Characteristics Table 2............................... 4
Changes to One-Time Programming .........................................12
Changes to Figure 37, Figure 38, and Figure 39 ........................14
Changes to Power Supply Considerations...................................14
Changes to Figure 40......................................................................15
Changes to Layout Considerations ..............................................15
11/03—Revision 0: Initial Version
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