Datasheet AD7190 (Analog Devices) - 3

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AD7190 Data Sheet TABLE OF CONTENTS
Features .. 1 Full-Scale Register .. 25 Applications ... 1 ADC Circuit Information .. 26 General Description ... 1 Overview ... 26 Functional Block Diagram .. 1 Filter, Output Data Rate, Settling Time ... 26 Revision History ... 2 Digital Interface .. 29 Specifications ... 3 Circuit Description... 33 Timing Characteristics .. 7 Analog Input Channel ... 33 Circuit and Timing Diagrams ... 7 PGA .. 33 Absolute Maximum Ratings .. 9 Bipolar/Unipolar Configuration .. 33 Thermal Resistance .. 9 Data Output Coding .. 33 ESD Caution .. 9 Clock .. 33 Pin Configuration and Function Descriptions ... 10 Burnout Currents ... 34 Typical Performance Characteristics ... 12 Reference ... 34 RMS Noise and Resolution .. 15 Reference Detect ... 34 Sinc4 Chop Disabled ... 15 Reset ... 34 Sinc3 Chop Disabled ... 16 System Synchronization .. 35 Sinc4 Chop Enabled .. 17 Temperature Sensor ... 35 Sinc3 Chop Enabled .. 18 Bridge Power-Down Switch .. 35 On-Chip Registers .. 19 Logic Outputs ... 35 Communications Register ... 19 Enable Parity ... 36 Status Register ... 20 Calibration ... 36 Mode Register ... 20 Grounding and Layout .. 37 Configuration Register .. 22 Applications Information .. 38 Data Register ... 24 Weigh Scales .. 38 ID Register ... 24 Outline Dimensions ... 39 GPOCON Register ... 24 Ordering Guide .. 39 Offset Register ... 25 Automotive Products ... 39
REVISION HISTORY 2/13—Rev. B to Rev. C
Changes to Table 20 ... 24 Added ID Register Section .. 24 Added Automotive Information (Throughout) ... 1 Changes to Table 21 ... 25 Added Automotive Specifications, Table 1 .. 3 Changes to Filter, Output Data Rate, Settling Time Section .. 26 Changes to Ordering Guide .. 39 Changes to Continuous Conversion Mode Section ... 31
5/09—Rev. A to Rev. B
Changes to Analog Input Channel and Bipolar/Unipolar Changes to Table 3 .. 9 Configuration Sections .. 33 Changes to Burnout Currents, Reference, Reference Detect, and
5/09—Rev. 0 to Rev. A
Reset Sections .. 34 Changes to Table 1 .. 3 Changes to Temperature Sensor Section ... 35 Changes to Table 3 and Table 4 ... 9 Changes to Calibration Section .. 36 Changes to Table 5 .. 10 Changes to Grounding and Layout Section .. 37 Changes to Table 6 and Table 7 ... 15 Changes to Weigh Scales Section ... 38 Changes to Status Register Section .. 20 Changes to Ordering Guide .. 39 Changes to Table 17 .. 21
10/08—Revision 0—Initial Version
Changes to Table 19 .. 23 Rev. C | Page 2 of 40 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Timing Characteristics Circuit and Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics RMS Noise and Resolution Sinc4 Chop Disabled Sinc3 Chop Disabled Sinc4 Chop Enabled Sinc3 Chop Enabled On-Chip Registers Communications Register Status Register Mode Register Configuration Register Data Register ID Register GPOCON Register Offset Register Full-Scale Register ADC Circuit Information Overview Filter, Output Data Rate, Settling Time Chop Disabled Chop Enabled 50 Hz/60 Hz Rejection Zero Latency Channel Sequencer Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Circuit Description Analog Input Channel PGA Bipolar/Unipolar Configuration Data Output Coding Clock Burnout Currents Reference Reference Detect Reset System Synchronization Temperature Sensor Bridge Power-Down Switch Logic Outputs Enable Parity Calibration Grounding and Layout Applications Information Weigh Scales Outline Dimensions Ordering Guide Automotive Products