參數(shù)資料
型號： AD7734
廠商： Analog Devices, Inc.
英文描述： 4-Channel, +-10 V Input Range, High Throughput, 24-Bit sigma ∆ ADC
文件頁數(shù)： 2/32頁
文件大?。?/td> 1542K
代理商： AD7734
AD7734
TABLE OF CONTENTS
AD7734—Specifications..................................................................3
Timing Specifications.......................................................................6
Absolute Maximum Ratings............................................................8
Typical Performance Characteristics.............................................9
Output Noise and Resolution Specification................................10
Chopping Enabled......................................................................10
Chopping Disabled.....................................................................11
Pin Configurations and Functional Descriptions......................12
Register Description.......................................................................14
Register Access............................................................................15
Communications Register.........................................................15
I/O Port Register.........................................................................16
Revision Register........................................................................16
Test Register................................................................................16
ADC Status Register...................................................................17
Checksum Register.....................................................................17
ADC Zero-Scale Calibration Register.....................................17
ADC Full-Scale Register............................................................17
Channel Data Registers .............................................................17
Channel Zero-Scale Calibration Registers..............................18
Channel Full-Scale Calibration Registers................................18
Channel Status Registers ...........................................................18
Channel Setup Registers............................................................19
Channel Conversion Time Registers.......................................19
Mode Register............................................................................. 20
Digital Interface Description........................................................ 22
Hardware..................................................................................... 22
Reset............................................................................................. 23
Access the AD7734 Registers.................................................... 23
Single Conversion and Reading Data...................................... 23
Dump Mode................................................................................ 24
Continuous Conversion Mode................................................. 24
Continuous Read (Continuous Conversion) Mode.............. 25
Circuit Description......................................................................... 26
Analog Front End....................................................................... 26
Analog Input’s Extended Voltage Range ................................. 27
Chopping..................................................................................... 27
Multiplexer, Conversion, and Data Output Timing............... 28
Sigma-Delta ADC....................................................................... 28
Frequency Response .................................................................. 29
Voltage Reference Inputs........................................................... 29
Reference Detect......................................................................... 29
I/O Port........................................................................................ 30
Calibration................................................................................... 30
ADC Zero-Scale Self-Calibration............................................ 30
Per Channel System Calibration .............................................. 30
Outline Dimensions....................................................................... 32
REVISION HISTORY
Revision 0: Initial Version
Rev. 0 | Page 2 of 32
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