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AD5422 Datasheet(PDF) 2 Page - Analog Devices |
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AD5422 Datasheet(HTML) 2 Page - Analog Devices |
2 / 40 page AD5412/AD5422 Rev. A | Page 2 of 40 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications..................................................................................... 4 AC Performance Characteristics ................................................ 7 Timing Characteristics ................................................................ 8 Absolute Maximum Ratings.......................................................... 10 ESD Caution................................................................................ 10 Pin Configurations and Function Descriptions ......................... 11 Typical Performance Characteristics ........................................... 13 General......................................................................................... 13 Voltage Output............................................................................ 15 Current Output ........................................................................... 20 Terminology .................................................................................... 24 Theory of Operation ...................................................................... 26 Architecture................................................................................. 26 Serial Interface ............................................................................ 27 Power-On State ........................................................................... 28 Data Register ............................................................................... 29 Control Register.......................................................................... 29 Reset Register .............................................................................. 30 Status Register ............................................................................. 30 AD5412/AD5422 Features ............................................................ 31 Fault Alert.................................................................................... 31 Voltage Output Short Circuit Protection ................................ 31 Voltage Output Overrange ........................................................ 31 Voltage Output Force-Sense ..................................................... 31 Asynchronous Clear (CLEAR) ................................................. 31 Internal Reference ...................................................................... 31 External Current Setting Resistor ............................................ 31 Digital Power Supply.................................................................. 32 External Boost Function ........................................................... 32 External Compensation Capacitor........................................... 32 Digital Slew Rate Control.......................................................... 32 IOUT Filtering Capacitors (LFCSP Package)............................. 33 Applications Information .............................................................. 35 Driving Inductive Loads............................................................ 35 Transient Voltage Protection .................................................... 35 Galvanically Isolated Interface ................................................. 35 Microprocessor Interfacing....................................................... 35 Layout Guidelines....................................................................... 35 Thermal and Supply Considerations ....................................... 36 Industrial Analog Output Module ........................................... 37 Outline Dimensions ....................................................................... 38 Ordering Guide .......................................................................... 39 REVISION HISTORY 8/09—Rev. 0 to Rev. A Changes to Table 2............................................................................ 4 Changes to Table 3............................................................................ 7 Changes to Introduction to Table 4................................................ 8 Changes to Introduction to Table 5 and to Table 5 .................... 10 Changes to Pin Configurations and Function Descriptions Section, Added Figure 6, Renumbered Subsequent Figures..... 11 Changes to Theory of Operation Section.................................... 26 Changes to Architecture Section.................................................. 26 Changes to AD5412/AD5422 Features Section ......................... 31 Added IOUT Filtering Capacitors (LFCSP Package)Section, Including Figure 69 to Figure 72 and Table 24 ........................... 33 Changes to Thermal and Supply Considerations Section......... 36 Updated Outline Dimensions....................................................... 38 Changes to Ordering Guide .......................................................... 39 5/09—Revision 0: Initial Version |
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