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 7 link to page 8 link to page 8 link to page 9 link to page 11 link to page 13 link to page 15 link to page 15 link to page 15 link to page 15 link to page 17 link to page 17 link to page 18 link to page 18 link to page 19 link to page 19 link to page 19 link to page 20 link to page 21 link to page 21 link to page 22 link to page 23 link to page 23 link to page 23 link to page 24 link to page 25 link to page 25 AD7357Data SheetTABLE OF CONTENTS Features .. 1 Driving Differential Inputs ... 16 Applications ... 1 Voltage Reference ... 17 Functional Block Diagram .. 1 ADC Transfer Function ... 17 General Description ... 1 Modes of Operation ... 18 Product Highlights ... 1 Normal Mode .. 18 Revision History ... 2 Partial Power-Down Mode ... 18 Specifications ... 3 Full Power-Down Mode .. 19 Timing Specifications .. 6 Power-Up Times ... 20 Absolute Maximum Ratings .. 7 Power vs. Throughput Rate ... 20 ESD Caution .. 7 Serial Interface .. 21 Pin Configurations and Function Descriptions ... 8 Application Suggestions... 22 Typical Performance Characteristics ... 10 Grounding and Layout .. 22 Terminology .. 12 Evaluating the AD7357 Performance .. 22 Theory of Operation .. 14 Outline Dimensions ... 23 Circuit Information .. 14 Ordering Guide .. 24 Converter Operation .. 14 Automotive Products ... 24 Analog Input Structure .. 14 Analog Inputs .. 16 REVISION HISTORY 12/15—Rev. D to Rev. E2/11—Rev. 0 to Rev. A Changes to Figure 3 and Table 5 ... 8 Changes to Features and Applications Sections .. 1 Changes to Table 2 ... 3 10/15—Rev. C to Rev. D Added AD7357WY Temperature Range to Endnote 1 in Table 3 . .. 5 Changes to Figure 20 .. 16 Changes to SDATAB, SDATAA Pin Description .. 7 Changes to Figure 20 and Figure 22 .. 14 6/15—Rev. B to Rev. C Changes to Figure 31 .. 18 Added 18-Lead LFCSP ... Universal Changes to Ordering Guide .. 20 Change to Features Section ... 1 Added Automotive Products Section .. 20 Changes to Table 2 .. 5 Added Figure 3, Renumbered Sequential y .. 8 4/09—Revision 0: Initial Version Change to Circuit Information Section ... 13 Updated Outline Dimensions ... 22 Changes to Ordering Guide .. 22 8/11—Rev. A to Rev. B Changes to Midscale Error Match Parameter, Table 2 .. 3 Changes to Figure 21 and Figure 22 ... 14 Added Voltage Reference Section .. ... ... ... ... ... ... ... ... ... ... ... 14 Rev. E | Page 2 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT STRUCTURE ANALOG INPUTS DRIVING DIFFERENTIAL INPUTS Differential Amplifier Operational Amplifier 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 SUGGESTIONS GROUNDING AND LAYOUT EVALUATING THE AD7357 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS