Datasheet AD7790 (Analog Devices) - 3

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AD7790 Data Sheet TABLE OF CONTENTS
AD7790—Specifications .. 3  Reduced Current Modes ... 13  Timing Characteristics, ... 5  Digital Interface .. 14  Absolute Maximum Ratings .. 7  Single Conversion Mode ... 15  ESD Caution .. 7  Continuous Conversion Mode ... 15  Pin Configuration and Function Descriptions ... 8  Continuous Read Mode .. 16  Typical Performance Characteristics ... 9  Circuit Description... 17  On-Chip Registers .. 10  Analog Input Channel ... 17  Communications Register (RS1, RS0 = 0, 0) .. 10  Programmable Gain Amplifier ... 17  Status Register (RS1, RS0 = 0, 0; Power-on/Reset = 0x88) ... 11  Bipolar Configuration .. 17  Mode Register (RS1, RS0 = 0, 1; Power-on/Reset = 0x02) .. 11  Data Output Coding .. 17  Filter Register (RS1, RS0 = 1, 0; Power-on/Reset = 0x04)... 12  Reference Input ... 17  Data Register (RS1, RS0 = 1, 1; Power-on/Reset = 0x0000) . 12  VDD Monitor .. 18  ADC Circuit Information .. 13  Grounding and Layout .. 18  Overview .. 13  Outline Dimensions ... 19  Noise Performance ... 13  Ordering Guide .. 19 
REVISION HISTORY 3/13—Rev. 0 to Rev. A
Added ESD Caution Section .. 7 Changes to Figure 10 ... 15 Change to Reference Input Section ... 17 Updated Outline Dimensions .. 19 Changes to Ordering Guide ... 19
8/03—Revision 0: Initial Version
Rev. A | Page 2 of 20 Document Outline AD7790—Specifications Timing Characteristics 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) Mode Register (RS1, RS0 = 0, 1; Power-on/Reset = 0x02) Filter Register (RS1, RS0 = 1, 0; Power-on/Reset = 0x04) Data Register (RS1, RS0 = 1, 1; Power-on/Reset = 0x0000) ADC Circuit Information Overview Noise Performance Reduced Current Modes Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Mode Circuit Description Analog Input Channel Programmable Gain Amplifier Bipolar Configuration Data Output Coding Reference Input VDD Monitor Grounding and Layout Outline Dimensions Ordering Guide