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AD7686BCPZRL71 Datasheet(PDF) 2 Page - Analog Devices |
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AD7686BCPZRL71 Datasheet(HTML) 2 Page - Analog Devices |
2 / 28 page AD7686 Rev. B | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications....................................................................... 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Terminology ...................................................................................... 8 Typical Performance Characteristics ............................................. 9 Theory of Operation ...................................................................... 12 Circuit Information.................................................................... 12 Converter Operation.................................................................. 12 Typical Connection Diagram ................................................... 13 Analog Input ............................................................................... 14 Driver Amplifier Choice ........................................................... 15 Voltage Reference Input ............................................................ 15 Power Supply............................................................................... 15 Supplying the ADC from the Reference.................................. 16 Digital Interface.......................................................................... 16 CS MODE 3-Wire, No Busy Indicator .................................... 17 CS Mode 3-Wire with Busy Indicator ..................................... 18 CS Mode 4-Wire, No Busy Indicator....................................... 19 CS Mode 4-Wire with Busy Indicator ..................................... 20 Chain Mode, No Busy Indicator .............................................. 21 Chain Mode with Busy Indicator ............................................. 22 Application Hints ........................................................................... 23 Layout .......................................................................................... 23 Evaluating Performance ............................................................ 23 True 16-Bit Isolated Application Example .............................. 24 Outline Dimensions ....................................................................... 25 Ordering Guide .......................................................................... 26 REVISION HISTORY 3/07—Rev. A to Rev. B Changes to Features and Table 1 .................................................... 1 Changes to Table 3............................................................................ 4 Moved Figure 3 and Figure 4 to Page............................................. 5 Changes to Figure 13 and Figure 15............................................. 10 Changes to Figure 26...................................................................... 13 Changes to Table 8.......................................................................... 15 Changes to Figure 31...................................................................... 16 Changes to Figure 42...................................................................... 21 Changes to Figure 44...................................................................... 22 Updated Outline Dimensions ....................................................... 25 Changes to Ordering Guide .......................................................... 26 4/06—Rev. 0 to Rev. A Updated Format..................................................................Universal Updated Outline Dimensions....................................................... 25 Changes to Ordering Guide .......................................................... 26 4/05—Revision 0: Initial Version |
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