Datasheet AD6644 (Analog Devices) - 3

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AD6644 TABLE OF CONTENTS
Features .. 1 Explanation of Test Levels..7 Applications... 1 Thermal Resistance ...7 General Description ... 1 ESD Caution...7 Product Highlights ... 1 Pin Configuration and Function Descriptions..8 Functional Block Diagram .. 1 Typical Performance Characteristics ..9 Revision History ... 2 Equivalent Circuits... 12 Specifications... 3 Terminology .. 13 DC Specifications ... 3 Theory of Operation .. 15 Digital Specifications ... 4 Applying the AD6644 .. 15 Switching Specifications .. 4 Evaluation Board .. 18 AC Specifications.. 5 Outline Dimensions ... 21 Timing Diagram ... 6 Ordering Guide .. 21 Absolute Maximum Ratings.. 7
REVISION HISTORY 8/07—Rev. C to Rev. D
Changes to Table 5.. 5 Changes to Noise (for Any Range Within the ADC) Definition .. 13 Added Table 8.. 16 Changes to Evaluation Board Section.. 18 Changes to Ordering Guide .. 21
5/03—Data Sheet changed from Rev. B to Rev. C
Updated Outline Dimensions ... 19
3/03—Data Sheet changed from Rev. A to Rev. B
Change to Digital Specifications Note ... 2
3/03—Data Sheet changed from Rev. 0 to Rev. A
Edits to Specifications .. 2 Renumbering of Figures and TPCs ..Universal Updated Outline Dimensions ... 19 Rev. D | Page 2 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS AC SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS Test Level THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS EQUIVALENT CIRCUITS TERMINOLOGY THEORY OF OPERATION APPLYING THE AD6644 Encoding the AD6644 Analog Input Power Supplies Digital Outputs Layout Information Jitter Considerations EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE