Datasheet AD7476A, AD7477A, AD7478A (Analog Devices) - 2

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AD7476A/AD7477A/AD7478A Data Sheet TABLE OF CONTENTS
Features .. 1 Typical Connection Diagram ... 16 Applications ... 1 Analog Input ... 16 Functional Block Diagram .. 1 Digital Inputs .. 17 General Description ... 1 Modes of Operation ... 18 Product Highlights ... 1 Normal Mode .. 18 Revision History ... 2 Power-Down Mode .. 18 Specifications ... 3 Power-Up Time .. 18 AD7476A Specifications .. 3 Power vs. Throughput Rate ... 20 AD7477A Specifications .. 5 Serial Interface .. 21 AD7478A Specifications .. 6 AD7478A in a 12 SCLK Cycle Serial Interface ... 22 Timing Specifications .. 8 Microprocessor Interfacing ... 23 Absolute Maximum Ratings .. 10 AD7476A/AD7477A/AD7478A to ADSP-2181 Interface .. 23 ESD Caution .. 10 AD7476A/AD7477A/AD7478A to DSP563xx Interface .. 24 Pin Configurations and Function Descriptions ... 11 Application Hints ... 25 Typical Performance Characteristics ... 12 Grounding and Layout .. 25 Terminology .. 14 Outline Dimensions ... 26 Theory of Operation .. 15 Ordering Guide .. 26 Circuit Information .. 15 Automotive Products ... 27 The Converter Operation .. 15 ADC Transfer Function ... 15
REVISION HISTORY 1/16—Rev. F to Rev. G 1/11—Rev. E to Rev. F
Changes to Table 5 .. 10 Changes to Features Section .. 1 Changed AD7476A/AD7477A/AD7478A to ADSP-218x Changes to Ordering Guide .. 26 Interface Section to AD7476A/AD7477A/AD7478A to Added Automotive Products Section .. 27 ADSP-2181 Section .. 23 Deleted AD7476A/AD7477A/AD7478A to TMS320C541
2/09—Rev. D to Rev. E
Interface Section and Figure 28; Renumbered Sequentially ... 23 Changes to Features .. 1 Deleted Evaluating the AD7476A/AD7477A Performance Changes to Ordering Guide .. 26 Section .. 25 Changes to Ordering Guide .. 26
4/06—Rev. C to Rev. D
Updated Format .. Universal Changes to Ordering Guide .. 26 Rev. G | Page 2 of 28 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7476A SPECIFICATIONS AD7477A SPECIFICATIONS AD7478A SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION THE CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT DIGITAL INPUTS MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7478A IN A 12 SCLK CYCLE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7476A/AD7477A/AD7478A TO ADSP-2181 INTERFACE AD7476A/AD7477A/AD7478A TO DSP563xx INTERFACE APPLICATION HINTS GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS