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AD7091R-8BRUZ-RL7 Fiches technique(PDF) 2 Page - Analog Devices |
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AD7091R-8BRUZ-RL7 Fiches technique(HTML) 2 Page - Analog Devices |
2 / 42 page AD7091R-2/AD7091R-4/AD7091R-8 Data Sheet Rev. C | Page 2 of 42 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 7 Thermal Resistance ...................................................................... 7 ESD Caution.................................................................................. 7 Pin Configurations and Function Descriptions ........................... 8 Typical Performance Characteristics ........................................... 13 Terminology .................................................................................... 18 Theory of Operation ...................................................................... 19 Circuit Information.................................................................... 19 Converter Operation.................................................................. 19 ADC Transfer Function............................................................. 19 Reference ..................................................................................... 19 Power Supply............................................................................... 20 Device Reset................................................................................ 20 Typical Connection Diagram.................................................... 20 Analog Input ............................................................................... 20 Driver Amplifier Choice............................................................ 21 Registers........................................................................................... 23 Addressing Registers.................................................................. 23 Conversion Result Register....................................................... 24 Channel Register ........................................................................ 25 Configuration Register .............................................................. 26 Alert Indication Register........................................................... 28 Channel x Low Limit Register.................................................. 30 Channel x High Limit Register................................................. 30 Channel x Hysteresis Register .................................................. 30 Serial Port Interface........................................................................ 31 Reading Conversion Result....................................................... 31 Writing Data to the Registers ................................................... 31 Reading Data from the Registers.............................................. 31 Power-On Device Initialization................................................ 33 Modes of Operation ....................................................................... 34 Normal Mode.............................................................................. 34 Power-Down Mode.................................................................... 34 ALERT (AD7091R-4 and AD7091R-8 Only) .......................... 35 BUSY (AD7091R-4 and AD7091R-8 Only)............................. 35 Channel Sequencer .................................................................... 36 Daisy Chain................................................................................. 37 Outline Dimensions....................................................................... 39 Ordering Guide .......................................................................... 42 REVISION HISTORY 12/15—Rev. B to Rev. C Change to the Reference Section.................................................. 19 11/14—Rev. A to Rev. B Added Endnote 1.............................................................................. 3 Added Total Power Dissipation (Normal Mode) of 0.080 mW... 4 Changes to Table 2............................................................................ 5 Added Device Reset Section and Figure 43; Renumbered Sequentially ..................................................................................... 20 Added Power-On Device Initialization Section and Figure 53..33 7/14—Rev. 0 to Rev. A Added 16-Lead LFCSP, 20-Lead LFCSP, and 24-Lead LFCSP ...................................................................Universal Changes to Features Section............................................................ 1 Changes to General Description Section ...................................... 1 Changes to Table 1............................................................................ 3 Changes to Table 4............................................................................ 7 Added Figure 6; Renumbered Sequentially .................................. 8 Changes to Table 5.............................................................................8 Added Figure 8 ..................................................................................9 Changes to Table 6.............................................................................9 Added Figure 10 ............................................................................. 11 Changes to Table 7.......................................................................... 11 Added Power Supply Section and Table 8; Renumbered Sequentially ..................................................................................... 20 Added Driver Amplifier Choice Section and Table 9................ 21 Changes to Table 16 ....................................................................... 26 Changed Serial Interface Section to Serial Port Interface Section.............................................................................................. 31 Changes to Figure 52...................................................................... 33 Updated Outline Dimensions....................................................... 38 Changes to Ordering Guide.......................................................... 41 12/13—Revision 0: Initial Version |
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