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AD7192 Arkusz danych(PDF) 2 Page - Analog Devices |
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AD7192 Arkusz danych(HTML) 2 Page - Analog Devices |
2 / 40 page AD7192 Rev. A | Page 2 of 40 TABLE OF CONTENTS Features .............................................................................................. 1 Interface ............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics..................................................................... 7 Circuit and Timing Diagrams..................................................... 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............................................................ 14 Sinc4 Chop Disabled................................................................... 14 Sinc3 Chop Disabled................................................................... 15 Sinc4 Chop Enabled.................................................................... 16 Sinc3 Chop Enabled.................................................................... 17 On-Chip Registers .......................................................................... 18 Communications Register......................................................... 18 Status Register ............................................................................. 19 Mode Register ............................................................................. 19 Configuration Register .............................................................. 21 Data Register ............................................................................... 23 ID Register................................................................................... 23 GPOCON Register ..................................................................... 24 Offset Register ............................................................................ 24 Full-Scale Register...................................................................... 24 ADC Circuit Information.............................................................. 25 Overview ..................................................................................... 25 Filter, Output Data Rate, and Settling Time ........................... 25 Digital Interface.......................................................................... 28 Circuit Description......................................................................... 32 Analog Input Channel ............................................................... 32 Programmable Gain Array (PGA)........................................... 32 Bipolar/Unipolar Configuration .............................................. 32 Data Output Coding .................................................................. 32 Clock ............................................................................................ 32 Burnout Currents ....................................................................... 33 Reference ..................................................................................... 33 Reference Detect......................................................................... 33 Reset ............................................................................................. 34 System Synchronization ............................................................ 34 Temperature Sensor ................................................................... 34 Bridge Power-Down Switch...................................................... 34 Logic Outputs ............................................................................. 34 Enable Parity ............................................................................... 35 Calibration................................................................................... 35 Grounding and Layout .............................................................. 36 Applications Information .............................................................. 37 Weigh Scales................................................................................ 37 Outline Dimensions ....................................................................... 38 Ordering Guide .......................................................................... 38 REVISION HISTORY 5/09—Rev. 0 to Rev. A Change to Gain Error Specification ............................................... 3 Changes to Table 3............................................................................ 9 5/09—Revision 0: Initial Version |
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