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AD5248BRMZ10-RL7 Datasheet(PDF) 2 Page - Analog Devices |
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AD5248BRMZ10-RL7 Datasheet(HTML) 2 Page - Analog Devices |
2 / 20 page AD5243/AD5248 Data Sheet Rev. B | Page 2 of 20 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics: 2.5 kΩ Version................................. 3 Electrical Characteristics: 10 kΩ, 50 kΩ, and 100 kΩ Versions.......................................................................................... 4 Timing Characteristics: All Versions ......................................... 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Test Circuits..................................................................................... 12 Theory of Operation ...................................................................... 13 Programming the Variable Resistor and Voltage ................... 13 Programming the Potentiometer Divider............................... 14 ESD Protection ........................................................................... 14 Terminal Voltage Operating Range ......................................... 14 Power-Up Sequence ................................................................... 14 Layout and Power Supply Bypassing ....................................... 14 Constant Bias to Retain Resistance Setting............................. 15 I2C Interface .................................................................................... 16 I2C Compatible, 2-Wire Serial Bus .......................................... 16 I2C Controller Programming.................................................... 18 Outline Dimensions ....................................................................... 19 Ordering Guide .......................................................................... 19 REVISION HISTORY 4/12—Rev. A to Rev. B Changes to Rheostat Operation Section, Table 7, and Table 8 ...............................................................................................13 Changes to Voltage Output Operation Section ...........................14 Deleted Evaluation Board Section and Figure 45, Renumbered Sequentially ......................................................................................15 Changes to Table 13.........................................................................17 Updated Outline Dimensions ........................................................19 Changes to Ordering Guide ...........................................................19 4/09—Rev. 0 to Rev. A Changes to DC Characteristics—Rheostat Mode Parameter and to DC Characteristics—Potentiometer Divider Mode Parameter, Table 1 .................................................................................................3 Moved Figure 3 ..................................................................................5 Updated Outline Dimensions........................................................19 Changes to Ordering Guide ...........................................................19 1/04—Revision 0: Initial Version |
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