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AD7194BCPZ-REEL Datasheet(PDF) 3 Page - Analog Devices |
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AD7194BCPZ-REEL Datasheet(HTML) 3 Page - Analog Devices |
3 / 55 page AD7194 Data Sheet Rev. B | Page 2 of 54 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 7 Absolute Maximum Ratings............................................................ 9 Thermal Resistance ...................................................................... 9 ESD Caution.................................................................................. 9 Pin Configuration and Function Descriptions........................... 10 Typical Performance Characteristics ........................................... 12 RMS Noise and Resolution............................................................ 15 Sinc4 Chop Disabled................................................................... 15 Sinc3 Chop Disabled................................................................... 16 Fast Settling ................................................................................. 17 On-Chip Registers.......................................................................... 18 Communications Register......................................................... 19 Status Register............................................................................. 20 Mode Register ............................................................................. 21 Configuration Register .............................................................. 24 Data Register............................................................................... 27 ID Register................................................................................... 27 GPOCON Register..................................................................... 27 Offset Register............................................................................. 28 Full-Scale Register...................................................................... 28 ADC Circuit Information.............................................................. 29 Overview...................................................................................... 29 Analog Input Channel ............................................................... 30 Programmable Gain Array (PGA)........................................... 30 Reference ..................................................................................... 30 Reference Detect......................................................................... 31 Bipolar/Unipolar Configuration .............................................. 31 Data Output Coding .................................................................. 31 Burnout Currents ....................................................................... 31 Digital Interface.......................................................................... 32 Reset............................................................................................. 36 System Synchronization ............................................................ 36 Enable Parity ............................................................................... 36 Clock ............................................................................................ 36 Temperature Sensor ................................................................... 36 Logic Outputs ............................................................................. 37 Calibration................................................................................... 37 Digital Filter .................................................................................... 39 Sinc4 Filter (Chop Disabled) ..................................................... 39 Sinc3 Filter (Chop Disabled) ..................................................... 41 Chop Enabled (Sinc4 Filter) ...................................................... 43 Chop Enabled (Sinc3 Filter) ...................................................... 45 Fast Settling Mode (Sinc4 Filter)............................................... 46 Fast Settling Mode (Sinc3 Filter)............................................... 48 Fast Settling Mode (Chop Enabled)......................................... 50 Summary of Filter Options ....................................................... 51 Grounding and Layout .................................................................. 52 Applications Information .............................................................. 53 Flowmeter.................................................................................... 53 Outline Dimensions....................................................................... 54 Ordering Guide .......................................................................... 54 REVISION HISTORY 6/2017—Rev. A to Rev. B Changed CP-32-11 to CP-32-12 .................................. Throughout Changes to Table 5.......................................................................... 11 Updated Outline Dimensions....................................................... 54 Changes to Ordering Guide .......................................................... 54 3/2013—Rev. 0 to Rev. A Changes to Pin 26, Table 5 ............................................................ 11 Changes to Table 21 ....................................................................... 25 Changes to Analog Inputs Section............................................... 29 Changes to Data Output Coding Section.................................... 31 10/2009—Revision 0: Initial Version |
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