link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 3 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 11 link to page 13 link to page 13 link to page 13 link to page 13 link to page 14 link to page 14 link to page 15 link to page 15 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 19 link to page 20 link to page 20 link to page 20 link to page 21 link to page 21 AD7356Data SheetTABLE OF CONTENTS Features... 1 Analog Inputs... 13 Applications ... 1 Driving Differential Inputs ... 13 Functional Block Diagram .. 1 Voltage Reference... 14 General Description .. 1 ADC Transfer Function .. 14 Product Highlights .. 1 Modes of Operation... 15 Revision History .. 2 Normal Mode... 15 Specifications ... 3 Partial Power-Down Mode ... 15 Timing Specifications .. 5 Full Power-Down Mode .. 16 Absolute Maximum Ratings ... 6 Power-Up Times .. 17 ESD Caution... 6 Power vs. Throughput Rate... 17 Pin Configuration and Function Descriptions.. 7 Serial Interface ... 18 Typical Performance Characteristics.. 8 Application Hints... 19 Terminology ... 10 Grounding and Layout .. 19 Theory of Operation.. 12 Evaluating the AD7356 Performance... 19 Circuit Information ... 12 Outline Dimensions .. 20 Converter Operation ... 12 Ordering Guide.. 20 Analog Input Structure.. 12 REVISION HISTORY 8/15—Rev. A to Rev. B Changes to Figure 20 ..14 8/11—Rev. 0 to Rev. A Added Applications Section...1 Changes to Table 1 ..1 Changes to Figure 21 and Figure 22 ..14 Added Voltage Reference Section..14 Updated Outline Dimensions ..20 10/08—Revision 0: Initial Version Rev. B | Page 2 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT STRUCTURE ANALOG INPUTS DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair VOLTAGE REFERENCE ADC TRANSFER FUNCTION MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING THE AD7356 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE