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AD7693 Datasheet(PDF) 3 Page - Analog Devices |
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AD7693 Datasheet(HTML) 3 Page - Analog Devices |
3 / 25 page AD7693 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Application 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 Inputs.............................................................................. 14 Driver Amplifier Choice ........................................................... 14 Single-Ended-to-Differential Driver ....................................... 15 Voltage Reference Input ............................................................ 15 Power Supply............................................................................... 15 Supplying the ADC from the Reference.................................. 16 Digital Interface.......................................................................... 16 CS Mode, 3-Wire Without Busy Indicator ............................. 17 CS Mode, 3-Wire with Busy Indicator .................................... 18 CS Mode, 4-Wire Without Busy Indicator ............................. 19 CS Mode, 4-Wire with Busy Indicator .................................... 20 Chain Mode Without Busy Indicator ...................................... 21 Chain Mode with Busy Indicator............................................. 22 Application Hints ........................................................................... 23 Layout .......................................................................................... 23 Evaluating AD7693 Performance............................................. 23 Outline Dimensions....................................................................... 24 Ordering Guide .......................................................................... 24 REVISION HISTORY 6/14—Rev. A to Rev. B Added Patent Footnote .................................................................... 1 Changes to Evaluating the AD7693 Performance Section........ 23 Updated Outline Dimensions (Dimensions Not Changed; Lead-to-Pad Dimensions Updated for JEDEC Compliance) ... 24 Changes to Ordering Guide .......................................................... 24 6/11—Rev. 0 to Rev. A Changes to Resolution Parameter and Common-Mode Input Range Parameter in Table 2..............................................................3 Changes to Figure 6 and Table 6......................................................7 Updated Outline Dimensions....................................................... 24 Changes to Ordering Guide.......................................................... 24 12/06—Revision 0: Initial Version Rev. B | Page 2 of 24 |
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