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AD79421 数据表(PDF) 2 Page - Analog Devices |
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AD79421 数据表(HTML) 2 Page - Analog Devices |
2 / 24 page AD7946 Rev. A | Page 2 of 24 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 Typical Performance Characteristics ............................................. 8 Terminology .................................................................................... 11 Theory of Operation ...................................................................... 12 Circuit Information.................................................................... 12 Converter Operation.................................................................. 12 Typical Connection Diagram ................................................... 13 Analog Input ............................................................................... 13 Driver Amplifier Choice............................................................ 14 Voltage Reference Input ............................................................ 14 Power Supply............................................................................... 15 Supplying the ADC from the Reference.................................. 15 Single-Supply Application......................................................... 15 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 Guidelines .................................................................. 23 Layout .......................................................................................... 23 Evaluating the AD7946’s Performance.................................... 23 Outline Dimensions ....................................................................... 24 Ordering Guide .......................................................................... 24 REVISION HISTORY 12/07—Rev. 0 to Rev. A QFN Package Available......................................................Universal Changes to Table 1............................................................................ 1 Changes to Table 5............................................................................ 6 Changes to Ordering Guide .......................................................... 24 7/05—Revision 0: Initial Version |
类似零件编号 - AD79421 |
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类似说明 - AD79421 |
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