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AD5252BRUZ100-RL7 Scheda tecnica(PDF) 2 Page - Analog Devices |
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AD5252BRUZ100-RL7 Scheda tecnica(HTML) 2 Page - Analog Devices |
2 / 28 page 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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