link to page 4 link to page 6 link to page 7 link to page 7 link to page 8 link to page 9 link to page 10 link to page 12 link to page 12 link to page 12 link to page 13 link to page 13 link to page 14 link to page 14 link to page 14 link to page 16 link to page 16 link to page 16 link to page 17 link to page 18 link to page 18 link to page 20 link to page 20 link to page 21 link to page 21 AD7453TABLE OF CONTENTS Specifications... 3 Reference ... 13 Timing Specifications .. 5 Serial Interface .. 13 Absolute Maximum Ratings.. 6 Modes of Operation ... 15 ESD Caution.. 6 Normal Mode.. 15 Pin Configuration and Function Descriptions... 7 Power-Down Mode .. 15 Terminology .. 8 Power-Up Time .. 16 AD7453–Typical Performance Characteristics .. 9 Power vs. Throughput Rate... 17 Circuit Information .. 11 Microprocessor and DSP Interfacing .. 17 Converter Operation.. 11 Application Hints ... 19 ADC Transfer Function... 11 Evaluating the AD7453’s Performance .. 19 Typical Connection Diagram ... 12 Outline Dimensions ... 20 The Analog Input.. 12 Ordering Guide .. 20 Digital Inputs .. 13 REVISION HISTORY2/04—Data Sheet changed from Rev. A to Rev. B Added Patent Note ... 1 1/04—Data Sheet changed from Rev. 0 to Rev. A Updated Format..Universal Changes to General Description .. 1 Changes to Specifications .. 3 Changes to Timing Specifications .. 5 Changes to Table 4.. 7 Replaced Figures 11, 12, 13.. 10 Changes to Typical Connection Diagram section ... 12 Change to Figure 18 ... 12 Changes to Reference Section... 13 Changes to Timing Example 1.. 14 8/03—Rev. 0: Initial Version Rev. B | Page 2 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY AD7453–TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM THE ANALOG INPUT Analog Input Structure DIGITAL INPUTS REFERENCE SERIAL INTERFACE Timing Example 1 MODES OF OPERATION NORMAL MODE POWER-DOWN MODE POWER-UP TIME POWER VS. THROUGHPUT RATE MICROPROCESSOR AND DSP INTERFACING AD7453 to ADSP-21xx AD7453 to TMS320C5x/C54x AD7453 to DSP56xxx APPLICATION HINTS Grounding and Layout EVALUATING THE AD7453’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE
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