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AD7153BRMZ bảng dữ liệu(PDF) 2 Page - Analog Devices |
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2 / 24 page AD7152/AD7153 Data Sheet Rev. A | Page 2 of 24 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Serial Interface ................................................................................ 11 Write Operation.......................................................................... 11 Read Operation........................................................................... 11 AD7152/AD7153 Reset .............................................................. 12 General Call................................................................................. 12 Register Map.................................................................................... 13 Status Register............................................................................. 14 Data Registers ............................................................................. 15 Offset Calibration Registers ...................................................... 15 Gain Calibration Registers ........................................................ 15 CAP Setup Registers .................................................................. 16 Configuration Register .............................................................. 16 CAPDAC POS Register ............................................................. 17 CAPDAC NEG Register............................................................ 17 Configuration2 Register............................................................ 17 Circuit Description......................................................................... 18 Capacitance-to-Digital Converter (CDC) .............................. 18 Excitation Source........................................................................ 18 CAPDAC ..................................................................................... 19 Single-Ended Capacitive Input................................................. 19 Differential Capacitive Input .................................................... 20 Parasitic Capacitance to Ground.............................................. 20 Parasitic Resistance to Ground................................................. 20 Parasitic Parallel Resistance ...................................................... 21 Parasitic Serial Resistance ......................................................... 21 Input EMC Protection ............................................................... 21 Power Supply Decoupling and Filtering.................................. 21 Capacitive Gain Calibration ..................................................... 21 Capacitive System Offset Calibration...................................... 21 Typical Application Diagram.................................................... 22 Outline Dimensions....................................................................... 23 Ordering Guide .......................................................................... 23 REVISION HISTORY 2/16—Rev. 0 to Rev. A Change to Address 0x01, Address 0x02 for Channel 1, Address 0x03, Address 0x04 (AD7152 Only) for Channel 2, 16 Bits, Read-Only, Default Value 0x0000 Section .................................. 15 Updated Outline Dimensions....................................................... 23 5/08—Revision 0: Initial Version |
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Mô tả tương tự - AD7153BRMZ |
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