Datasheet AD7321 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 500 kSPS, 2-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC |
| 页数 / 页 | 37 / 3 — AD7321. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 12/13—Rev. A to … |
| 修订版 | B |
| 文件格式/大小 | PDF / 708 Kb |
| 文件语言 | 英语 |
AD7321. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 12/13—Rev. A to Rev. B. 10/09—Rev. 0 to Rev. A
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AD7321 Data Sheet TABLE OF CONTENTS
Features .. 1 Control Register ... 23 Functional Block Diagram .. 1 Range Register .. 25 General Description ... 1 Sequencer Operation ... 26 Product Highlights ... 1 Reference ... 27 Revision History ... 2 VDRIVE .. 27 Specifications ... 3 Modes of Operation ... 28 Timing Specifications .. 7 Normal Mode .. 28 Absolute Maximum Ratings .. 8 Full Shutdown Mode .. 28 ESD Caution .. 8 Autoshutdown Mode ... 29 Pin Configuration and Function Descriptions ... 9 Autostandby Mode ... 29 Typical Performance Characteristics ... 10 Power vs. Throughput Rate ... 30 Terminology .. 14 Serial Interface .. 31 Theory of Operation .. 16 Microprocessor Interfacing ... 32 Circuit Information .. 16 AD7321 to ADSP-21xx .. 32 Converter Operation .. 16 AD7321 to ADSP-BF53x ... 32 Analog Input Structure .. 17 Application Hints ... 33 Typical Connection Diagram ... 19 Layout and Grounding .. 33 Analog Input ... 19 Power Supply Configuration .. 33 Driver Amplifier Choice .. 21 Outline Dimensions ... 34 Registers ... 22 Ordering Guide .. 34 Addressing Registers .. 22
REVISION HISTORY 12/13—Rev. A to Rev. B
Changes to Circuit Information Section and Table 6 .. 16 Changes to Addressing Registers Section .. 22 Changes to Power Supply Configuration Section .. 33
10/09—Rev. 0 to Rev. A
Changes to Table 2 .. 4 Changes to Figure 53 .. 33 Changes to Power Supply Configuration Section .. 33 Changes to Table 16 .. 33 Changes to Outline Dimensions ... 34 Changes to Ordering Guide .. 34
1/06—Revision 0: Initial Version
Rev. B | Page 2 of 36 Document Outline Features Functional Block Diagram General Description Product Highlights 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 Full Shutdown Mode Autoshutdown Mode Autostandby Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7321 to ADSP-21xx AD7321 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide
AD7321 Data Sheet TABLE OF CONTENTS
Features .. 1 Control Register ... 23 Functional Block Diagram .. 1 Range Register .. 25 General Description ... 1 Sequencer Operation ... 26 Product Highlights ... 1 Reference ... 27 Revision History ... 2 VDRIVE .. 27 Specifications ... 3 Modes of Operation ... 28 Timing Specifications .. 7 Normal Mode .. 28 Absolute Maximum Ratings .. 8 Full Shutdown Mode .. 28 ESD Caution .. 8 Autoshutdown Mode ... 29 Pin Configuration and Function Descriptions ... 9 Autostandby Mode ... 29 Typical Performance Characteristics ... 10 Power vs. Throughput Rate ... 30 Terminology .. 14 Serial Interface .. 31 Theory of Operation .. 16 Microprocessor Interfacing ... 32 Circuit Information .. 16 AD7321 to ADSP-21xx .. 32 Converter Operation .. 16 AD7321 to ADSP-BF53x ... 32 Analog Input Structure .. 17 Application Hints ... 33 Typical Connection Diagram ... 19 Layout and Grounding .. 33 Analog Input ... 19 Power Supply Configuration .. 33 Driver Amplifier Choice .. 21 Outline Dimensions ... 34 Registers ... 22 Ordering Guide .. 34 Addressing Registers .. 22
REVISION HISTORY 12/13—Rev. A to Rev. B
Changes to Circuit Information Section and Table 6 .. 16 Changes to Addressing Registers Section .. 22 Changes to Power Supply Configuration Section .. 33
10/09—Rev. 0 to Rev. A
Changes to Table 2 .. 4 Changes to Figure 53 .. 33 Changes to Power Supply Configuration Section .. 33 Changes to Table 16 .. 33 Changes to Outline Dimensions ... 34 Changes to Ordering Guide .. 34
1/06—Revision 0: Initial Version
Rev. B | Page 2 of 36 Document Outline Features Functional Block Diagram General Description Product Highlights 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 Full Shutdown Mode Autoshutdown Mode Autostandby Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7321 to ADSP-21xx AD7321 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide