AD7175-8 データシートの表示（PDF） - Analog Devices
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AD7175-8
Analog Devices
AD7175-8 Datasheet PDF : 64 Pages
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AD7175-8
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings............................................................ 8
Thermal Resistance ...................................................................... 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 11
Noise Performance and Resolution.............................................. 17
Getting Started ................................................................................ 18
Power Supplies ............................................................................ 19
Digital Communication............................................................. 19
AD7175-8 Reset.......................................................................... 20
Configuration Overview ........................................................... 20
Circuit Description......................................................................... 25
Buffered Analog Input ............................................................... 25
Crosspoint Multiplexer .............................................................. 25
AD7175-8 Reference .................................................................. 26
Buffered Reference Input........................................................... 27
Clock Source ............................................................................... 27
Digital Filters................................................................................... 28
Sinc5 + Sinc1 Filter..................................................................... 28
Sinc3 Filter................................................................................... 28
Single Cycle Settling ................................................................... 29
Enhanced 50 Hz and 60 Hz Rejection Filters ......................... 33
Operating Modes ............................................................................ 36
Continuous Conversion Mode ................................................. 36
Continuous Read Mode............................................................. 37
Single Conversion Mode ........................................................... 38
Standby and Power-Down Modes............................................ 39
Calibration................................................................................... 39
Digital Interface .............................................................................. 40
Checksum Protection................................................................. 40
REVISION HISTORY
10/15—Revision 0: Initial Version
CRC Calculation......................................................................... 41
Integrated Functions ...................................................................... 43
General-Purpose I/O ................................................................. 43
External Multiplexer Control ................................................... 43
Delay ............................................................................................ 43
16-Bit/24-Bit Conversions......................................................... 43
DOUT_RESET ........................................................................... 43
Synchronization.......................................................................... 43
Error Flags ................................................................................... 44
DATA_STAT ............................................................................... 44
IOSTRENGTH ........................................................................... 44
Power-Down Switch .................................................................. 45
Internal Temperature Sensor .................................................... 45
Grounding and Layout .................................................................. 46
Register Summary .......................................................................... 47
Register Details ............................................................................... 49
Communications Register......................................................... 49
Status Register............................................................................. 51
ADC Mode Register................................................................... 52
Interface Mode Register ............................................................ 53
Register Check ............................................................................ 54
Data Register............................................................................... 54
GPIO Configuration Register................................................... 55
ID Register................................................................................... 56
Channel Register 0 ..................................................................... 56
Channel Register 1 to Channel Register 15 ............................ 58
Setup Configuration Register 0 ................................................ 59
Setup Configuration Register 1 to Setup Configuration
Register 7 ..................................................................................... 60
Filter Configuration Register 0................................................. 61
Filter Configuration Register 1 to Filter Configuration
Register 7 ..................................................................................... 62
Offset Register 0 ......................................................................... 62
Offset Register 1 to Offset Register 7....................................... 62
Gain Register 0............................................................................ 62
Gain Register 1 to Gain Register 7 ........................................... 63
Outline Dimensions ....................................................................... 64
Ordering Guide .......................................................................... 64
Rev. 0 | Page 2 of 64
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