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ADM1069ASTZ Datasheet(PDF) 2 Page - Analog Devices

Part No. ADM1069ASTZ
Description  Super Sequencer with Margining Control
Download  32 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1069ASTZ Datasheet(HTML) 2 Page - Analog Devices

 
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ADM1069
Rev. C | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
 
Functional Block Diagram .............................................................. 1
 
Applications....................................................................................... 1
 
General Description ......................................................................... 1
 
Revision History ............................................................................... 2
 
Detailed Block Diagram .................................................................. 3
 
Specifications..................................................................................... 4
 
Absolute Maximum Ratings............................................................ 7
 
Thermal Resistance ...................................................................... 7
 
ESD Caution.................................................................................. 7
 
Pin Configurations and Function Descriptions ........................... 8
 
Typical Performance Characteristics ........................................... 10
 
Powering the ADM1069 ................................................................ 13
 
Inputs................................................................................................ 14
 
Supply Supervision..................................................................... 14
 
Programming the Supply Fault Detectors............................... 14
 
Input Comparator Hysteresis.................................................... 14
 
Input Glitch Filtering ................................................................. 15
 
Supply Supervision with VXx Inputs....................................... 15
 
VXx Pins as Digital Inputs ........................................................ 15
 
Outputs ............................................................................................ 16
 
Supply Sequencing Through Configurable Output Drivers. 16
 
Default Output Configuration.................................................. 16
 
Sequencing Engine ......................................................................... 17
 
Overview...................................................................................... 17
 
Warnings...................................................................................... 17
 
SMBus Jump (Unconditional Jump)........................................ 17
 
Sequencing Engine Application Example ............................... 18
 
Fault and Status Reporting........................................................ 19
 
Voltage Readback............................................................................ 20
 
Supply Supervision with the ADC ........................................... 20
 
Supply Margining ........................................................................... 21
 
Overview ..................................................................................... 21
 
Open-Loop Supply Margining ................................................. 21
 
Closed-Loop Supply Margining ............................................... 21
 
Writing to the DACs .................................................................. 22
 
Choosing the Size of the Attenuation Resistor....................... 22
 
DAC Limiting and Other Safety Features ............................... 22
 
Applications Diagram .................................................................... 23
 
Communicating with the ADM1069........................................... 24
 
Configuration Download at Power-Up................................... 24
 
Updating the Configuration ..................................................... 24
 
Updating the Sequencing Engine............................................. 25
 
Internal Registers........................................................................ 25
 
EEPROM ..................................................................................... 25
 
Serial Bus Interface..................................................................... 25
 
SMBus Protocols for RAM and EEPROM.............................. 28
 
Write Operations ........................................................................ 28
 
Read Operations......................................................................... 30
 
Outline Dimensions ....................................................................... 31
 
Ordering Guide .......................................................................... 31
 
REVISION HISTORY
6/11—Rev. B to Rev. C
Change to Serial Bus Timing Parameter in Table 1 ..................... 4
Changes to Ordering Guide .......................................................... 31
8/08—Rev. A to Rev. B
Added 40-Lead LFCSP.......................................................Universal
Changes to Table 1............................................................................ 4
Moved Absolute Maximum Ratings Section, Changes to Table 3... 7
Added Figure 4, Renumbered Sequentially; Changes to Table 4..... 8
Changes to Powering the ADM1069 Section ............................. 13
Changes to Default Output Configuration Section ................... 16
Changes to Sequence Detector Section ....................................... 18
Changes to Figure 32...................................................................... 21
Changes to Configuration Download at Power-Up Section..... 24
Changes to Table 11........................................................................ 25
Changes to Figure 45 and Error Correction Section ................. 30
Updated Outline Dimensions ....................................................... 31
Changes to Ordering Guide .......................................................... 31
10/06—Rev. 0 to Rev. A
Changes to Features ..........................................................................1
Changes to Figure 2...........................................................................3
Changes to Table 1.............................................................................4
Changes to Table 2.............................................................................7
Changes to Table 3.............................................................................8
Inserted Table 4; Renumbered Sequentially ..................................8
Changes to Programming the Supply Fault Detectors Section ..... 13
Changes to Outputs Section.......................................................... 16
Changes to Fault Reporting Section ............................................ 21
Changes to Table 9.......................................................................... 22
Inserted Table 11............................................................................. 28
Changes to Ordering Guide .......................................................... 33
3/05—Revision 0: Initial Version


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