Datasheet AD7679 (Analog Devices) - 3

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AD7679 TABLE OF CONTENTS
Features .. 1 Typical Connection Diagram ... 17 Applications ... 1 Power Dissipation versus Throughput .. 19 Functional Block Diagram .. 1 Conversion Control ... 19 General Description ... 1 Digital Interface .. 20 Product Hghlights .. 1 Parallel Interface ... 20 Revision History ... 2 Serial Interface .. 20 Specifications ... 3 Master Serial Interface ... 21 Timing Specifications ... 5 Slave Serial Interface .. 22 Absolute Maximum Ratings .. 7 Microprocessor Interfacing ... 24 ESD Caution .. 7 Application Hints ... 25 Pin Configuration and Function Descriptions ... 8 Layout .. 25 Definition of Specifications ... 11 Evaluating the AD7679’s Performance .. 25 Typical Performance Characteristics ... 12 Outline Dimensions ... 26 Circuit Information .. 15 Ordering Guide .. 26 Converter Operation .. 15
REVISION HISTORY 6/09—Rev. 0 to Rev. A
Changes to Zero Error, TMIN to TMAX Parameter ... 3 Changes to Endnote 3 .. 4 Changes to Pin Configuration Section .. 8 Changes to Evaluating the AD7679’s Performance Section .. 25 Changes to Ordering Guide .. 26
7/03—Revision 0: Initial Version
Rev. A | Page 2 of 28 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS DEFINITION OF SPECIFICATIONS TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Power Supply POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read during Conversion MICROPROCESSOR INTERFACING SPI Interface (ADSP-219x) APPLICATION HINTS LAYOUT EVALUATING THE AD7679’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE