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AD586 Datasheet(PDF) 2 Page - Analog Devices |
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AD586 Datasheet(HTML) 2 Page - Analog Devices |
2 / 44 page AD5737 Data Sheet Rev. B | Page 2 of 44 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Companion Products ....................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Detailed Functional Block Diagram .............................................. 3 Specifications..................................................................................... 4 AC Performance Characteristics ................................................ 6 Timing Characteristics ................................................................ 6 Absolute Maximum Ratings............................................................ 9 Thermal Resistance ...................................................................... 9 ESD Caution.................................................................................. 9 Pin Configuration and Function Descriptions........................... 10 Typical Performance Characteristics ........................................... 13 Current Outputs ......................................................................... 13 DC-to-DC Converter................................................................. 17 Reference ..................................................................................... 18 General......................................................................................... 19 Terminology .................................................................................... 20 Theory of Operation ...................................................................... 21 DAC Architecture....................................................................... 21 Power-On State of the AD5737 ................................................ 21 Serial Interface ............................................................................ 21 Transfer Function ....................................................................... 22 Registers........................................................................................... 23 Enabling the Output................................................................... 24 Reprogramming the Output Range ......................................... 24 Data Registers ............................................................................. 25 Control Registers........................................................................ 27 Readback Operation .................................................................. 30 Device Features............................................................................... 32 Fault Output................................................................................ 32 Digital Offset and Gain Control............................................... 32 Status Readback During a Write .............................................. 32 Asynchronous Clear................................................................... 32 Packet Error Checking............................................................... 33 Watchdog Timer......................................................................... 33 Alert Output................................................................................ 33 Internal Reference ...................................................................... 33 External Current Setting Resistor ............................................ 33 HART Connectivity ................................................................... 34 Digital Slew Rate Control.......................................................... 34 Dynamic Power Control............................................................ 35 DC-to-DC Converters............................................................... 35 AICC Supply Requirements—Static .......................................... 36 AICC Supply Requirements—Slewing ...................................... 37 External PMOS Mode................................................................ 38 Applications Information .............................................................. 39 Current Output Mode with Internal RSET................................ 39 Precision Voltage Reference Selection..................................... 39 Driving Inductive Loads............................................................ 39 Transient Voltage Protection .................................................... 40 Microprocessor Interfacing....................................................... 40 Layout Guidelines....................................................................... 40 Galvanically Isolated Interface ................................................. 41 Industrial HART Capable Analog Output Application ........ 42 Outline Dimensions....................................................................... 43 Ordering Guide .......................................................................... 43 REVISION HISTORY 5/12—Rev. A to Rev. B Changes to Companion Products Section .................................... 1 Change to Table 6 ........................................................................... 12 Added Industrial HART Capable Analog Output Application Section and Figure 65, Renumbered Sequentially ..................... 42 Updated Outline Dimensions....................................................... 43 11/11—Rev. 0 to Rev. A Change to Accuracy, External RSET Parameter in Table 1............ 4 Changes to Power-On State of the AD5737 Section.................. 21 Changes to Readback Operation Section and Readback Example Section ............................................................................. 30 7/11—Revision 0: Initial Version |
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