Datasheet AD7440, AD7450A (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | Differential Input, 1 MSPS, 12- (AD7450A) & 10-Bit (AD7440) ADCs |
| Páginas / Página | 27 / 2 — AD7440/AD7450A. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/15—Rev. … |
| Revisión | D |
| Formato / tamaño de archivo | PDF / 624 Kb |
| Idioma del documento | Inglés |
AD7440/AD7450A. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/15—Rev. C to Rev. D. 2/04—Rev. A to Rev. B
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AD7440/AD7450A Data Sheet TABLE OF CONTENTS
Features .. 1 Typical Connection Diagram ... 16 Applications ... 1 Analog Input ... 16 General Description ... 1 Driving Differential Inputs ... 18 Functional Block Diagram .. 1 Digital Inputs .. 19 Product Highlights ... 1 Reference ... 19 Revision History ... 2 Single-Ended Operation .. 20 AD7440–Specifications .. 3 Serial Interface .. 21 AD7450A–Specifications ... 5 Modes of Operation ... 23 Timing Specifications ... 7 Normal Mode .. 23 Absolute Maximum Ratings .. 8 Power-Down Mode .. 23 ESD Caution .. 8 Power-Up Time .. 24 Pin Configurations and Function Descriptions ... 9 Power vs. Throughput Rate ... 24 Terminology .. 10 Grounding and Layout Hints.. 25 AD7440/AD7450A–Typical Performance Characteristics ... 12 Evaluating the AD7440/AD7450A Performance ... 25 Circuit Information .. 15 Outline Dimensions ... 26 Converter Operation .. 15 Ordering Guide .. 27 ADC Transfer Function ... 15
REVISION HISTORY 7/15—Rev. C to Rev. D 2/04—Rev. A to Rev. B
Changed FSCLK to fSCLK .. Throughout Added Patent Note .. 1 Changes to Figure 34 .. 18 Changes to Power vs. Throughput Rate Section .. 24
1/04—Rev. 0 to Rev. A
Deleted Microprocessor and DSP Interfacing Section, Updated Format .. Universal AD7440/AD7450A to ADSP-21xx Section, Table 7, and Figure Changes to General Description ... 1 45; Renumbered Sequential y ... 25 Changes to Table 1 Footnotes .. 3 Deleted AD7440/AD7450A to TMS320C5x/C54x Section, Changes to Table 2 Footnotes .. 5 Figure 46, AD7440/AD7450A to DSP56xxx Section, and Changes to Table 3 Footnotes .. 7 Figure 47 .. 26 Updated Outline Dimensions ... 27
8/03—Revision 0: Initial Version
Changes to Ordering Guide .. 28
9/05—Rev. B to Rev. C
Changes to Ordering Guide .. 28 Rev. D | Page 2 of 27 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY AD7440–SPECIFICATIONS AD7450A–SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7440/AD7450A–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT Analog Input Structure DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair RF Transformer DIGITAL INPUTS REFERENCE Example 1 Example 2 SINGLE-ENDED OPERATION SERIAL INTERFACE Timing Example 1 Timing Example 2 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER vs. THROUGHPUT RATE GROUNDING AND LAYOUT HINTS EVALUATING THE AD7440/AD7450A PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE
AD7440/AD7450A Data Sheet TABLE OF CONTENTS
Features .. 1 Typical Connection Diagram ... 16 Applications ... 1 Analog Input ... 16 General Description ... 1 Driving Differential Inputs ... 18 Functional Block Diagram .. 1 Digital Inputs .. 19 Product Highlights ... 1 Reference ... 19 Revision History ... 2 Single-Ended Operation .. 20 AD7440–Specifications .. 3 Serial Interface .. 21 AD7450A–Specifications ... 5 Modes of Operation ... 23 Timing Specifications ... 7 Normal Mode .. 23 Absolute Maximum Ratings .. 8 Power-Down Mode .. 23 ESD Caution .. 8 Power-Up Time .. 24 Pin Configurations and Function Descriptions ... 9 Power vs. Throughput Rate ... 24 Terminology .. 10 Grounding and Layout Hints.. 25 AD7440/AD7450A–Typical Performance Characteristics ... 12 Evaluating the AD7440/AD7450A Performance ... 25 Circuit Information .. 15 Outline Dimensions ... 26 Converter Operation .. 15 Ordering Guide .. 27 ADC Transfer Function ... 15
REVISION HISTORY 7/15—Rev. C to Rev. D 2/04—Rev. A to Rev. B
Changed FSCLK to fSCLK .. Throughout Added Patent Note .. 1 Changes to Figure 34 .. 18 Changes to Power vs. Throughput Rate Section .. 24
1/04—Rev. 0 to Rev. A
Deleted Microprocessor and DSP Interfacing Section, Updated Format .. Universal AD7440/AD7450A to ADSP-21xx Section, Table 7, and Figure Changes to General Description ... 1 45; Renumbered Sequential y ... 25 Changes to Table 1 Footnotes .. 3 Deleted AD7440/AD7450A to TMS320C5x/C54x Section, Changes to Table 2 Footnotes .. 5 Figure 46, AD7440/AD7450A to DSP56xxx Section, and Changes to Table 3 Footnotes .. 7 Figure 47 .. 26 Updated Outline Dimensions ... 27
8/03—Revision 0: Initial Version
Changes to Ordering Guide .. 28
9/05—Rev. B to Rev. C
Changes to Ordering Guide .. 28 Rev. D | Page 2 of 27 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY AD7440–SPECIFICATIONS AD7450A–SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7440/AD7450A–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT Analog Input Structure DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair RF Transformer DIGITAL INPUTS REFERENCE Example 1 Example 2 SINGLE-ENDED OPERATION SERIAL INTERFACE Timing Example 1 Timing Example 2 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER vs. THROUGHPUT RATE GROUNDING AND LAYOUT HINTS EVALUATING THE AD7440/AD7450A PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE