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AD7124-8BCPZ-RL bảng dữ liệu(PDF) 2 Page - Analog Devices |
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2 / 91 page AD7124-8 Data Sheet Rev. B | Page 2 of 91 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 3 General Description ......................................................................... 4 Specifications..................................................................................... 5 Timing Characteristics .............................................................. 10 Absolute Maximum Ratings.......................................................... 13 Thermal Resistance .................................................................... 13 ESD Caution................................................................................ 13 Pin Configuration and Function Descriptions........................... 14 Terminology .................................................................................... 17 Typical Performance Characteristics ........................................... 18 RMS Noise and Resolution............................................................ 27 Full Power Mode......................................................................... 27 Mid Power Mode ........................................................................ 30 Low Power Mode........................................................................ 33 Getting Started ................................................................................ 36 Overview...................................................................................... 36 Power Supplies ............................................................................ 37 Digital Communication............................................................. 37 Configuration Overview ........................................................... 39 ADC Circuit Information.............................................................. 44 Analog Input Channel ............................................................... 44 Programmable Gain Array (PGA)........................................... 45 Reference ..................................................................................... 45 Bipolar/Unipolar Configuration .............................................. 46 Data Output Coding .................................................................. 46 Excitation Currents .................................................................... 46 Bridge Power-Down Switch ...................................................... 46 Logic Outputs.............................................................................. 47 Bias Voltage Generator .............................................................. 47 Clock ............................................................................................ 47 Power Modes............................................................................... 47 Standby and Power-Down Modes............................................ 48 Digital Interface .......................................................................... 48 DATA_STATUS.......................................................................... 50 Serial Interface Reset (DOUT_RDY_DEL and CS_EN Bits)50 Reset ............................................................................................. 50 Calibration................................................................................... 51 Span and Offset Limits .............................................................. 52 System Synchronization ............................................................ 52 Digital Filter .................................................................................... 53 Sinc4 Filter ................................................................................... 53 Sinc3 Filter ................................................................................... 55 Fast Settling Mode (Sinc4 + Sinc1Filter).................................. 57 Fast Settling Mode (Sinc3 + Sinc1Filter).................................. 59 Post Filters ................................................................................... 61 Summary of Filter Options ....................................................... 64 Diagnostics...................................................................................... 65 Signal Chain Check.................................................................... 65 Reference Detect......................................................................... 65 Calibration, Conversion, and Saturation Errors .................... 65 Overvoltage/Undervoltage Detection ..................................... 65 Power Supply Monitors ............................................................. 66 LDO Monitoring ........................................................................ 66 MCLK Counter........................................................................... 66 SPI SCLK Counter...................................................................... 66 SPI Read/Write Errors ............................................................... 67 SPI_IGNORE Error ................................................................... 67 Checksum Protection ................................................................ 67 Memory Map Checksum Protection ....................................... 67 Burnout Currents ....................................................................... 69 Temperature Sensor ................................................................... 69 Grounding and Layout .................................................................. 70 Applications Information .............................................................. 71 Temperature Measurement Using a Thermocouple.............. 71 Temperature Measurement Using an RTD............................. 72 Flowmeter.................................................................................... 74 On-Chip Registers.......................................................................... 76 Communications Register......................................................... 77 Status Register............................................................................. 77 ADC_CONTROL Register ....................................................... 78 Data Register............................................................................... 80 IO_CONTROL_1 Register........................................................ 80 IO_CONTROL_2 Register........................................................ 82 ID Register................................................................................... 83 Error Register.............................................................................. 83 ERROR_EN Register ................................................................. 84 MCLK_COUNT Register.......................................................... 85 |
Số phần tương tự - AD7124-8BCPZ-RL |
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Mô tả tương tự - AD7124-8BCPZ-RL |
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