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AD7091R-4BCPZ-RL7 Folha de dados(PDF) 2 Page - Analog Devices

Nome de Peças AD7091R-4BCPZ-RL7
Descrição Electrónicos  2-/4-/8-Channel, 1 MSPS, Ultralow Power, 12-Bit SAR ADC
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD7091R-4BCPZ-RL7 Folha de dados(HTML) 2 Page - Analog Devices

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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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