Datasheet AD7625 (Analog Devices) - 3

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AD7625 Data Sheet TABLE OF CONTENTS
Features .. 1  Circuit Information .. 13  Applications ... 1  Converter Information .. 13  Functional Block Diagram .. 1  Transfer Functions ... 14  General Description ... 1  Analog Inputs ... 14  Revision History ... 2  Typical Connection Diagram ... 15  Specifications ... 3  Driving the AD7625 ... 16  Timing Specifications .. 5  Voltage Reference Options .. 17  Absolute Maximum Ratings .. 6  Power Supply ... 18  Thermal Resistance .. 6  Digital Interface .. 19  ESD Caution .. 6  Applications Information .. 21  Pin Configuration and Function Descriptions ... 7  Layout, Decoupling, and Grounding ... 21  Typical Performance Characteristics ... 9  Outline Dimensions ... 22  Terminology .. 12  Ordering Guide .. 22  Theory of Operation .. 13 
REVISION HISTORY 10/15—Rev. A to Rev. B 7/12—Rev. 0 to Rev. A
Changes to Table 1 .. 1 Change to Table 5 .. 6 Added Aperture Delay Parameter and Current Drain Parameter, Changes to Figure 2 ... 7 Table 2 .. 3 Updated Outline Dimensions (Changed CP-32-2 to CP-32-7) .. 22 Changes to CLK± Period Parameter and Endnote 2, Table 3 ... 5 Changes to Ordering Guide .. 22 Changes to Figure 32 Caption and Ordering Guide .. 22
1/09—Revision 0: Initial Version
Rev. B | Page 2 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER INFORMATION TRANSFER FUNCTIONS ANALOG INPUTS TYPICAL CONNECTION DIAGRAM DRIVING THE AD7625 Differential Analog Input Source Single-Ended-to-Differential Driver VOLTAGE REFERENCE OPTIONS POWER SUPPLY Power-Up DIGITAL INTERFACE Conversion Control Echoed-Clock Interface Mode Self-Clocked Interface Mode APPLICATIONS INFORMATION LAYOUT, DECOUPLING, AND GROUNDING Exposed Pad VDD1 Supply Routing and Decoupling VIO Supply Decoupling Layout and Decoupling of Pin 25 to Pin 32 OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES