Datasheet AD7452 (Analog Devices) - 3

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AD7452 Data Sheet TABLE OF CONTENTS
Features .. 1 Typical Connection Diagram ... 14 Applications ... 1 Analog Input ... 14 General Description ... 1 Driving Differential Inputs ... 16 Functional Block Diagram .. 1 Digital Inputs .. 18 Product Highlights ... 1 Reference ... 18 Revision History ... 2 Single-Ended Operation .. 18 Specifications ... 3 Serial Interface .. 19 Timing Specifications .. 5 Modes of Operation ... 20 Absolute Maximum Ratings .. 6 Normal Mode .. 20 ESD Caution .. 6 Power-Down Mode .. 20 Pin Configuration and Function Descriptions ... 7 Power-Up Time .. 21 Terminology .. 8 Power vs. Throughput Rate ... 22 Typical Performance Characteristics ... 10 Application Hints ... 22 Circuit Information .. 13 Evaluating the AD7452’s Performance .. 23 Converter Operation .. 13 Outline Dimensions ... 24 ADC Transfer Function ... 13 Ordering Guide .. 24
REVISION HISTORY 7/15—Rev. B to Rev. C 2/04—Rev. A to Rev. B
Changed FSCLK to fSCLK .. Throughout Added Patent Note .. 1 Changes to Figure 29 .. 16 Changes to Power vs. Throughput Rate Section .. 22
2/04—Rev. 0 to Rev. A
Deleted Microprocessor and DSP Interfacing Section and Updated Formatting ... Universal AD7452 to ADSP-21xx Section .. 22 Changes to Applications section ... 1 Deleted Figure 40, Figure 41, and Figure 42; Renumbered Changes to General Description ... 1 Sequentially ... 23 Changes to Specifications ... 4 Deleted AD7452 to TMS320C5x/C54x Section and AD7452 to Changes to Timing Specifications ... 5 DSP56xxx Section ... 23 Changes to Timing Example ... 19 Updated Outline Dimensions ... 24 Changes to Ordering Guide .. 24
9/03—Revision 0: Initial Version
Rev. C | Page 2 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT Analog Input Structure DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair RF Transformer DIGITAL INPUTS REFERENCE Example 1 Example 2 SINGLE-ENDED OPERATION SERIAL INTERFACE Timing Example MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER vs. THROUGHPUT RATE APPLICATION HINTS Grounding and Layout EVALUATING THE AD7452’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE