Datasheet AD7322 (Analog Devices) - 3

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