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AD9248BCPZ-20 Datasheet(PDF) 3 Page - Analog Devices |
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AD9248BCPZ-20 Datasheet(HTML) 3 Page - Analog Devices |
3 / 49 page AD9248 Rev. B | Page 2 of 48 TABLE OF CONTENTS Specifications..................................................................................... 3 DC Specifications ......................................................................... 3 AC Specifications.......................................................................... 5 Digital Specifications ................................................................... 6 Switching Specifications .............................................................. 7 Absolute Maximum Ratings............................................................ 8 Explanation of Test Levels ........................................................... 8 ESD Caution.................................................................................. 8 Pin Configurations and Function Descriptions ........................... 9 Terminology .................................................................................... 11 Typical Performance Characteristics ........................................... 12 Equivalent Circuits ......................................................................... 16 Theory of Operation ...................................................................... 17 Analog Input ............................................................................... 17 Clock Input and Considerations .............................................. 18 Power Dissipation and Standby Mode..................................... 19 Digital Outputs ........................................................................... 19 Timing.......................................................................................... 19 Data Format ................................................................................ 20 Voltage Reference....................................................................... 20 AD9248 LQFP Evaluation Board ................................................. 22 Clock Circuitry ........................................................................... 22 Analog Inputs ............................................................................. 22 Reference Circuitry .................................................................... 22 Digital Control Logic ................................................................. 22 Outputs ........................................................................................ 22 LQFP Evaluation Board Bill of Materials (BOM).................. 24 LQFP Evaluation Board Schematics ........................................ 25 LQFP PCB Layers....................................................................... 29 Dual ADC LFCSP PCB.................................................................. 35 Power Connector........................................................................ 35 Analog Inputs ............................................................................. 35 Optional Operational Amplifier .............................................. 35 Clock ............................................................................................ 35 Voltage Reference ....................................................................... 35 Data Outputs............................................................................... 35 LFCSP Evaluation Board Bill of Materials (BOM) ................ 36 LFCSP PCB Schematics............................................................. 37 LFCSP PCB Layers ..................................................................... 40 Thermal Considerations............................................................ 45 Outline Dimensions ....................................................................... 46 Ordering Guide .......................................................................... 47 REVISION HISTORY 11/10—Rev. A to Rev. B Changes to Absolute Maximum Ratings Section......................... 8 Changes to Figure 3.......................................................................... 9 Add Figure 4; Renumbered Sequentially....................................... 9 Changes to Theory of Operation Section and Analog Input Section.............................................................................................. 17 Deleted Note 1 from Dual ADC LFCSP PCB Section............... 35 Updated Outline Dimensions ....................................................... 46 3/05—Rev. 0 to Rev. A Added LFCSP ......................................................................Universal Changes to Features.......................................................................... 1 Changes to Applications .................................................................. 1 Changes to General Description .................................................... 1 Changes to Product Highlights....................................................... 1 Changes to Table 6.......................................................................... 10 Changes to Terminology ............................................................... 11 Changes to Figure 22...................................................................... 15 Changes to Clock Input and Considerations Section................ 18 Changes to Timing Section ........................................................... 19 Changes to Figure 33...................................................................... 19 Changes to Data Format Section.................................................. 20 Changes to Table 10 ....................................................................... 24 Changes to Figure 39...................................................................... 25 Changes to Table 13 ....................................................................... 36 Updated Outline Dimensions....................................................... 46 Changes to Ordering Guide .......................................................... 47 1/05—Revision 0: Initial Version |
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