Datasheet AD7490 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 16-Channel, 1MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP |
| Seiten / Seite | 29 / 3 — AD7490. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 12/12—Rev. C to … |
| Revision | D |
| Dateiformat / Größe | PDF / 759 Kb |
| Dokumentensprache | Englisch |
AD7490. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 12/12—Rev. C to Rev. D. 10/02—Rev. 0 to Rev. A. 6/09—Rev. B to Rev. C
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AD7490 Data Sheet TABLE OF CONTENTS
Features .. 1 Shadow Register ... 14 Functional Block Diagram .. 1 Theory of Operation .. 16 General Description ... 1 Circuit Information .. 16 Product Highlights ... 1 Converter Operation .. 16 Revision History ... 2 ADC Transfer Function ... 17 Specifications ... 3 Typical Connection Diagram ... 18 Timing Specifications .. 5 Modes of Operation ... 19 Absolute Maximum Ratings .. 6 Serial Interface .. 22 ESD Caution .. 6 Power vs. Throughput Rate ... 23 Pin Configurations and Function Descriptions ... 7 Microprocessor Interfacing ... 24 Typical Performance Characteristics ... 8 Application Hints ... 25 Terminology .. 10 Outline Dimensions ... 26 Internal Register Structure .. 12 Ordering Guide .. 27 Control Register .. 12
REVISION HISTORY 12/12—Rev. C to Rev. D 10/02—Rev. 0 to Rev. A
Changes to Figure 4 and Table 4 ... 7 Addition to General Description... 1 Updated Outline Dimensions (Changed CP-32-2 to CP-32-7) ... 26 Changes to Timing Specification Notes ... 4 Changes to Ordering Guide ... 27 Change to Absolute Maximum Ratings ... 5
6/09—Rev. B to Rev. C
Addition to Ordering Guide .. 5 Changes to Typical Performance Characteristics .. 8 Change to IDD Auto Standby Mode Parameter, Table 1 ... 4 Added new Figure 9 .. 8
5/08—Rev. A to Rev. B
Changes to Figure 12 and Figure 14... 11 Updated Format .. Universal Changes to Figure 20 .. 13 Changes to Table 1 .. 3 Changes to Figure 20 to Figure 26 .. 14 Changes to Figure 12 and Figure 13 ... 14 Addition to Analog Input section .. 14 Changes to Figure 14 .. 15 Change to Figure 29 caption ... 18 Changes to Reference Section ... 19 Change to Figure 30 to Figure 32 ... 18 Updated Outline Dimensions ... 26 Added Application Hints section ... 20 Changes to Ordering Guide .. 27
1/02—Revision 0: Initial Version
Rev. D | Page 2 of 28 Document Outline Features Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Internal Register Structure Control Register Sequencer Operation Shadow Register Theory of Operation Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Channels Digital Input VDRIVE Reference Section Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Auto Standby (PM1 = PM0 = 0) Powering Up the AD7490 Serial Interface Power vs. Throughput Rate Microprocessor Interfacing AD7490 to TMS320C541 AD7490 to ADSP-21xx AD7490 to DSP563xx Application Hints Grounding and Layout PCB Design Guidelines for Chip Scale Package Evaluating the AD7490 Performance Outline Dimensions Ordering Guide
AD7490 Data Sheet TABLE OF CONTENTS
Features .. 1 Shadow Register ... 14 Functional Block Diagram .. 1 Theory of Operation .. 16 General Description ... 1 Circuit Information .. 16 Product Highlights ... 1 Converter Operation .. 16 Revision History ... 2 ADC Transfer Function ... 17 Specifications ... 3 Typical Connection Diagram ... 18 Timing Specifications .. 5 Modes of Operation ... 19 Absolute Maximum Ratings .. 6 Serial Interface .. 22 ESD Caution .. 6 Power vs. Throughput Rate ... 23 Pin Configurations and Function Descriptions ... 7 Microprocessor Interfacing ... 24 Typical Performance Characteristics ... 8 Application Hints ... 25 Terminology .. 10 Outline Dimensions ... 26 Internal Register Structure .. 12 Ordering Guide .. 27 Control Register .. 12
REVISION HISTORY 12/12—Rev. C to Rev. D 10/02—Rev. 0 to Rev. A
Changes to Figure 4 and Table 4 ... 7 Addition to General Description... 1 Updated Outline Dimensions (Changed CP-32-2 to CP-32-7) ... 26 Changes to Timing Specification Notes ... 4 Changes to Ordering Guide ... 27 Change to Absolute Maximum Ratings ... 5
6/09—Rev. B to Rev. C
Addition to Ordering Guide .. 5 Changes to Typical Performance Characteristics .. 8 Change to IDD Auto Standby Mode Parameter, Table 1 ... 4 Added new Figure 9 .. 8
5/08—Rev. A to Rev. B
Changes to Figure 12 and Figure 14... 11 Updated Format .. Universal Changes to Figure 20 .. 13 Changes to Table 1 .. 3 Changes to Figure 20 to Figure 26 .. 14 Changes to Figure 12 and Figure 13 ... 14 Addition to Analog Input section .. 14 Changes to Figure 14 .. 15 Change to Figure 29 caption ... 18 Changes to Reference Section ... 19 Change to Figure 30 to Figure 32 ... 18 Updated Outline Dimensions ... 26 Added Application Hints section ... 20 Changes to Ordering Guide .. 27
1/02—Revision 0: Initial Version
Rev. D | Page 2 of 28 Document Outline Features Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Internal Register Structure Control Register Sequencer Operation Shadow Register Theory of Operation Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Channels Digital Input VDRIVE Reference Section Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Auto Standby (PM1 = PM0 = 0) Powering Up the AD7490 Serial Interface Power vs. Throughput Rate Microprocessor Interfacing AD7490 to TMS320C541 AD7490 to ADSP-21xx AD7490 to DSP563xx Application Hints Grounding and Layout PCB Design Guidelines for Chip Scale Package Evaluating the AD7490 Performance Outline Dimensions Ordering Guide