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AD7322 Datasheet(PDF) 3 Page - Analog Devices |
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AD7322 Datasheet(HTML) 3 Page - Analog Devices |
3 / 37 page AD7322 Data Sheet Rev. B | Page 2 of 36 TABLE OF CONTENTS Features .............................................................................................. 1 Functional Block Diagram .............................................................. 1 General Description......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 6 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. 8 Typical Performance Characteristics ............................................. 9 Terminology .................................................................................... 13 Theory of Operation ...................................................................... 15 Circuit Information.................................................................... 15 Converter Operation.................................................................. 15 Analog Input Structure.............................................................. 16 Typical Connection Diagram ................................................... 18 Analog Input ............................................................................... 18 Driver Amplifier Choice............................................................ 20 Registers........................................................................................... 21 Addressing Registers.................................................................. 21 Control Register ......................................................................... 22 Range Register ............................................................................ 24 Sequencer Operation ..................................................................... 25 Reference ..................................................................................... 26 VDRIVE............................................................................................ 26 Modes of Operation ....................................................................... 27 Normal Mode (PM1 = PM0 = 0) ............................................. 27 Full Shutdown Mode (PM1 = PM0 = 1) ................................. 27 Autoshutdown Mode (PM1 = 1, PM0 = 0)............................. 28 Autostandby Mode (PM1 = 0, PM0 = 1) ................................ 28 Power vs. Throughput Rate....................................................... 29 Serial Interface ................................................................................ 30 Microprocessor Interfacing........................................................... 31 AD7322 to ADSP-21xx.............................................................. 31 AD7322 to ADSP-BF53x........................................................... 31 Application Hints ........................................................................... 32 Layout and Grounding .............................................................. 32 Power Supply Configuration .................................................... 32 Outline Dimensions....................................................................... 33 Ordering Guide .......................................................................... 33 REVISION HISTORY 12/13—Rev. A to Rev. B Changes to Circuit Information Section and Table 6 ................ 15 Changes to Addressing Registers Section.................................... 21 Changes to Power Supply Configuration Section ...................... 32 1/10—Rev. 0 to Rev. A Changes to Power Requirements, Normal Mode (Operational), ICC and IDRIVE Parameter; and Power Dissipation, Normal Mode Parameter, Table 2............................................................................. 5 Changes to Endnote 1, Table 4........................................................ 7 Changes to Table 6.......................................................................... 15 Changes to Figure 25 and Figure 26............................................. 16 Changes to Figure 30 and Figure 31............................................. 17 Changes to Figure 33 and Figure 34............................................. 18 Changes to Figure 39...................................................................... 19 Changes to Figure 40 and Figure 41............................................. 20 Changes to Autostandby Mode (PM1 = 0, PM = 1) Section .... 28 Changes to Table 14 and Table 15 ................................................ 31 Added Power Supply Configuration Section.............................. 32 Added Table 16; Renumbered Sequentially ................................ 32 Added Figure 53; Renumbered Sequentially .............................. 32 Updated Outline Dimensions....................................................... 33 12/05—Revision 0: Initial Version |
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