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ADR445 데이터시트(PDF) 2 Page - Analog Devices |
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ADR445 데이터시트(HTML) 2 Page - Analog Devices |
2 / 48 page AD5735 Data Sheet Rev. B | Page 2 of 48 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 ................................................ 7 Timing Characteristics ................................................................ 8 Absolute Maximum Ratings.......................................................... 11 Thermal Resistance .................................................................... 11 ESD Caution................................................................................ 11 Pin Configuration and Function Descriptions........................... 12 Typical Performance Characteristics ........................................... 15 Voltage Outputs .......................................................................... 15 Current Outputs ......................................................................... 19 DC-to-DC Converter................................................................. 23 Reference ..................................................................................... 24 General......................................................................................... 25 Terminology .................................................................................... 26 Theory of Operation ...................................................................... 28 DAC Architecture....................................................................... 28 Power-On State of the AD5735 ................................................ 29 Serial Interface ............................................................................ 29 Transfer Function ....................................................................... 29 Registers........................................................................................... 30 Enabling the Output................................................................... 31 Data Registers ............................................................................. 32 Control Registers........................................................................ 34 Readback Operation .................................................................. 37 Device Features............................................................................... 39 Fault Output................................................................................ 39 Voltage Output Short-Circuit Protection................................ 39 Digital Offset and Gain Control............................................... 39 Status Readback During a Write .............................................. 39 Asynchronous Clear................................................................... 40 Packet Error Checking............................................................... 40 Watchdog Timer......................................................................... 40 Alert Output................................................................................ 40 Internal Reference ...................................................................... 40 External Current Setting Resistor ............................................ 40 Digital Slew Rate Control.......................................................... 41 Dynamic Power Control............................................................ 41 DC-to-DC Converters............................................................... 42 AICC Supply Requirements—Static .......................................... 43 AICC Supply Requirements—Slewing ...................................... 43 Applications Information .............................................................. 45 Voltage and Current Output Pins on the Same Terminal..... 45 Current Output Mode with Internal RSET................................ 45 Precision Voltage Reference Selection..................................... 45 Driving Inductive Loads............................................................ 46 Transient Voltage Protection .................................................... 46 Microprocessor Interfacing....................................................... 46 Layout Guidelines....................................................................... 46 Galvanically Isolated Interface ................................................. 47 Outline Dimensions....................................................................... 48 Ordering Guide .......................................................................... 48 REVISION HISTORY 5/12—Rev. A to Rev. B Changes to Figure 2...........................................................................3 11/11—Rev. 0 to Rev. A Added Comments to OUTPUT CHARACTERISTICS and ACCURACY, CURRENT OUTPUT Parameters in Table 1 .................................................................................................4 Changes to Power-On State of the AD5735 Section.................. 29 Changes to Readback Operation Section.................................... 37 7/11—Revision 0: Initial Version |
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