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AD4110-1 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Universal Input Analog Front End - Analog Devices

भाग संख्या AD4110-1
समारोह Universal Input Analog Front End
मैन्युफैक्चरर्स Analog Devices 
लोगो Analog Devices लोगो 
पूर्व दर्शन
1 Page
		
<?=AD4110-1?> डेटा पत्रक पीडीएफ

AD4110-1 pdf
AD4110-1
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Input Auto Sequencing.............................................................. 21
Applications....................................................................................... 1
Single Conversion Mode ........................................................... 22
General Description ......................................................................... 1
ADC Conversion Delay............................................................. 22
Functional Block Diagram .............................................................. 1
Bias Voltage Generator .............................................................. 22
Revision History ............................................................................... 3
Antialiasing Filter Circuit.......................................................... 23
Specifications..................................................................................... 4
Current Mode ............................................................................. 24
Timing Specifications .................................................................. 9
Voltage and Thermocouple Mode............................................ 27
Absolute Maximum Ratings.......................................................... 10
RTD Mode................................................................................... 30
Thermal Resistance .................................................................... 10
Field Power Supply Mode.......................................................... 35
ESD Caution................................................................................ 10
Pin Configuration and Function Descriptions........................... 11
No Power Supply Mode............................................................. 36
Gain Calibration Data Register .................................................... 38
Typical Performance Characteristics ........................................... 13
Gain Calibration in Voltage Mode ........................................... 38
Theory of Operation ...................................................................... 17
Gain Calibration in Current Mode .......................................... 38
Power Supply Sequence ............................................................. 18
Scaling Factor.............................................................................. 38
Protection Diode ........................................................................ 18
Autocalibration Modes .............................................................. 39
Analog Input ............................................................................... 18
Pull-Up/Pull-Down Currents ................................................... 18
Application Examples ................................................................ 40
Diagnostics and Protection ........................................................... 41
Antialiasing Filter ....................................................................... 18
Diagnostic Flags ......................................................................... 41
RTD Excitation Currents........................................................... 18
Error Pin...................................................................................... 41
Field Power Supply Mode.......................................................... 18
Overtemperature Detection and Thermal Shutdown ........... 41
No Power Supply Mode ............................................................. 18
Overvoltage and Undervoltage Detection .............................. 42
Bias Voltage Generator .............................................................. 18
Overvoltage Protection.............................................................. 42
PGA .............................................................................................. 18
Diagnosing Overvoltage and Undervoltage Conditions....... 43
Calibration Registers.................................................................. 18
Open Wire Detection................................................................. 44
Serial Interface ............................................................................ 18
Diagnostics for RTD Measurements and RTD Flags ............ 44
Clock ............................................................................................ 18
Noise, Settling Time, and Digital Filtering ................................. 45
ADC ............................................................................................. 18
Digital Filter ................................................................................ 45
ADC Filter Registers .................................................................. 18
Sinc5 + Sinc1 Filter .................................................................... 45
ADC Gain and Offset Registers................................................ 18
Sinc3 Filter................................................................................... 45
Noise Performance and Resolution.............................................. 19
Enhanced 50 Hz and 60 Hz Rejection Filters......................... 48
Modes of Operation ....................................................................... 20
RTD Mode Noise Performance ................................................ 50
Default Mode of Operation on Power-Up .............................. 20
Serial Peripheral Interface ............................................................. 51
Changing The Default Mode of Operation for Future Power-
Up Cycles ..................................................................................... 20
Power Supply Requirements ..................................................... 20
System Clock Requirements ..................................................... 20
Bipolar and Unipolar Output.................................................... 21
Auxiliary Low Voltage Inputs ................................................... 21
Digital Filter ................................................................................ 21
Continuous Conversion Mode ................................................. 21
Resetting the AD4110-1 ............................................................ 51
SPI Command to Communications Register ......................... 51
DOUT/RDY Pin......................................................................... 52
Write Operation.......................................................................... 52
Read Operation........................................................................... 53
Multiple Devices on the SPI Bus .............................................. 54
CRC Checksum .......................................................................... 55
CRC Checksum Methods.......................................................... 55
Rev. 0 | Page 2 of 74

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