Data SheetAD7276/AD7277/AD7278t4t8SCLKSCLKVIH 002 SDATA1.4V 004 SDATAVIL 04903- 04903- Figure 2. Access Time After SCLK Falling Edge Figure 4. SCLK Falling Edge SDATA Three-State t7SCLKVIH 003 SDATAVIL 04903- Figure 3. Hold Time After SCLK Falling Edge Rev. D | Page 9 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7276 SPECIFICATIONS AD7277 SPECIFICATIONS AD7278 SPECIFICATIONS TIMING SPECIFICATIONS—AD7276/AD7277/AD7278 TIMING EXAMPLES Timing Example 1 Timing Example 2 ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Analog Input Digital Inputs MODES OF OPERATION Normal Mode Partial Power-Down Mode Full Power-Down Mode Power-Up Times POWER VS. THROUGHPUT RATE SERIAL INTERFACE AD7278 IN A 10 SCLK CYCLE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7276/AD7277/AD7278 to Blackfin Processor APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES