Datasheet AD7788, AD7789 (Analog Devices) - 2

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AD7788/AD7789 Data Sheet TABLE OF CONTENTS
Features .. 1 Communications Register ... 11 Interface ... 1 Status Register ... 12 Applications ... 1 Mode Register ... 13 Functional Block Diagram .. 1 Data Register ... 13 General Description ... 1 ADC Circuit Information .. 14 Revision History ... 2 Noise Performance ... 14 Specifications ... 3 Digital Interface .. 14 AD7789 .. 3 Circuit Description... 17 AD7788 .. 4 Analog Input Channel ... 17 AD7788/AD7789 .. 5 Bipolar/Unipolar Configuration .. 17 Timing Characteristics .. 6 Data Output Coding .. 17 Timing Diagrams .. 7 Reference Input ... 17 Absolute Maximum Ratings .. 8 VDD Monitor .. 18 ESD Caution .. 8 Grounding and Layout .. 18 Pin Configuration and Function Descriptions ... 9 Outline Dimensions ... 19 Typical Performance Characteristics ... 10 Ordering Guide .. 19 On-Chip Registers .. 11
REVISION HISTORY 4/16—Rev. B to Rev. C
Change to (RS1, RS0 = 0, 1; Power-On/Reset = 0x02) Section ... 13 Updated Outline Dimensions ... 19 Changes to Ordering Guide .. 19
3/06—Rev. A to Rev. B
Changes to Ordering Guide .. 19
11/04—Rev. 0 to Rev. A
Updated Format .. Universal Added Footnote 2 to Integral Nonlinearity A Grade ... 4 Changes to Figure 5 .. 9 Updated Outline Dimensions ... 19 Changes to Ordering Guide .. 19
8/03—Revision 0: Initial Version
Rev. C | Page 2 of 20 Document Outline FEATURES INTERFACE APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS SPECIFICATIONS AD7789 AD7788 AD7788/AD7789 TIMING CHARACTERISTICS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS ON-CHIP REGISTERS COMMUNICATIONS REGISTER (RS1, RS0 = 0, 0) STATUS REGISTER (RS1, RS0 = 0, 0; Power-On/Reset = 0x88 for AD7788 and 0x8C for AD7789) MODE REGISTER (RS1, RS0 = 0, 1; Power-On/Reset = 0x02) DATA REGISTER (RS1, RS0 = 1, 1; Power-On/Reset = 0x0000 for the AD7788 and 0x000000 for the AD7789) ADC CIRCUIT INFORMATION NOISE PERFORMANCE DIGITAL INTERFACE Single Conversion Mode Continuous Conversion Mode Continuous Read Mode CIRCUIT DESCRIPTION ANALOG INPUT CHANNEL BIPOLAR/UNIPOLAR CONFIGURATION DATA OUTPUT CODING REFERENCE INPUT VDD MONITOR GROUNDING AND LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE NOTES