Datasheet AD7276, AD7277, AD7278 (Analog Devices) - 2

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AD7276/AD7277/AD7278 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 16 General Description ... 1 Circuit Information .. 16 Functional Block Diagram .. 1 Converter Operation .. 16 Product Highlights ... 1 ADC Transfer Function ... 16 Revision History ... 2 Typical Connection Diagram ... 16 Specifications ... 3 Modes of Operation ... 18 AD7276 Specifications ... 3 Power vs. Throughput Rate ... 21 AD7277 Specifications ... 5 Serial Interface .. 22 AD7278 Specifications ... 7 AD7278 in a 10 SCLK Cycle Serial Interface .. 24 Timing Specifications—AD7276/AD7277/AD7278 ... 8 Microprocessor Interfacing ... 24 Timing Examples .. 10 Application Hints ... 25 Absolute Maximum Ratings .. 11 Grounding and Layout .. 25 ESD Caution .. 11 Evaluating Performance .. 25 Pin Configurations and Function Descriptions ... 12 Outline Dimensions ... 26 Typical Performance Characteristics ... 13 Ordering Guide .. 27 Terminology .. 15
REVISION HISTORY 7/15—Rev. C. to Rev. D
Changes to Table 4 ... 7 Changes to Differential Nonlinearity Parameter, Table 2 ... 3 Changes to Ordering Guide .. 27 Changes to Typical Connection Diagram Section ... 16 Changes to AD7276/AD7277/AD7278 to Blackfin Processor
10/05—Rev. 0 to Rev. A
Section and Figure 36 ... 24 Updated Format .. Universal Changes to Ordering Guide .. 27 Changes to Table 2 ... 3 Changes to Table 5 ... 8
5/11—Rev. B to Rev. C
Changes to the Partial Power-Down Mode Section .. 18 Changes to Figure 21 .. 16 Changes to the Power vs. Throughput Rate Section .. 21 Changes to Ordering Guide .. 27 Updated Outline Dimensions ... 26 Changes to Endnote 5 .. 27 Changes to Ordering Guide .. 26
11/09—Rev. A to Rev. B 7/05—Revision 0: Initial Version
Changes to Table 2 .. 3 Changes to Table 3 .. 5 Rev. D | Page 2 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7276 SPECIFICATIONS AD7277 SPECIFICATIONS AD7278 SPECIFICATIONS TIMING SPECIFICATIONS—AD7276/AD7277/AD7278 TIMING EXAMPLES Timing Example 1 Timing Example 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Analog Input Digital Inputs MODES OF OPERATION Normal Mode Partial Power-Down Mode Full Power-Down Mode Power-Up Times POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7278 IN A 10 SCLK CYCLE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7276/AD7277/AD7278 to Blackfin Processor APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES