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ADN2850BCPZ250 Datasheet(PDF) 2 Page - Analog Devices

Part No. ADN2850BCPZ250
Description  Nonvolatile Memory, Dual 1024-Position Digital Resistor
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADN2850BCPZ250 Datasheet(HTML) 2 Page - Analog Devices

 
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ADN2850
Data Sheet
Rev. E | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—25 kΩ, 250 kΩ Versions ............... 3
Interface Timing and EEMEM Reliability Characteristics—
25 kΩ, 250 kΩ Versions............................................................... 5
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ........................................... 10
Test Circuits................................................................................. 12
Theory of Operation ...................................................................... 13
Scratchpad and EEMEM Programming.................................. 13
Basic Operation .......................................................................... 13
EEMEM Protection.................................................................... 14
Digital Input and Output Configuration................................. 14
Serial Data Interface................................................................... 14
Daisy-Chain Operation ............................................................. 14
Terminal Voltage Operating Range ......................................... 15
Advanced Control Modes ......................................................... 17
RDAC Structure.......................................................................... 18
Programming the Variable Resistor......................................... 19
Programming Examples............................................................ 19
EVAL-ADN2850SDZ Evaluation Kit....................................... 20
Applications Information .............................................................. 21
Gain Control Compensation .................................................... 21
Programmable Low-Pass Filter ................................................ 21
Programmable Oscillator .......................................................... 21
Optical Transmitter Calibration with ADN2841................... 22
Incoming Optical Power Monitoring ...................................... 22
Resistance Scaling ...................................................................... 23
Resistance Tolerance, Drift, and Temperature Coefficient
Mismatch Considerations ......................................................... 24
RDAC Circuit Simulation Model............................................. 24
Outline Dimensions....................................................................... 25
Ordering Guide .......................................................................... 25
REVISION HISTORY
6/12—Rev. D to Rev. E
Changes to Table 1 Conditions....................................................... 4
Removed Positive Supply Current RDY and/or SDO Floating
Parameters and Negative Supply Current RDY and/or SDO
Floating Parameters, Table 1 ........................................................... 4
Updated Outline Dimensions....................................................... 25
Added Endnote 2 to Ordering Guide .......................................... 25
4/11—Rev. C to Rev. D
Changes to Figure 10...................................................................... 10
4/11—Rev. B to Rev. C
Updated Format..................................................................Universal
Changes to EEMEM Performance ...................................Universal
Changes to Features Section............................................................ 1
Changes to Applications Section .................................................... 1
Changes to General Description Section ...................................... 1
Changes to Figure 1.......................................................................... 1
Changes to Specifications Section.................................................. 3
Changes to Table 2............................................................................ 5
Changes to Absolute Maximum Ratings Section......................... 7
Changes to Pin Configuration and Function Descriptions
Section................................................................................................ 8
Changes to Typical Performance Characteristics Section ........ 10
Added Figure 15, Figure 16, Figure 17 ........................................ 11
Changes to Figure 21...................................................................... 12
Changes to Theory of Operation Section.................................... 13
Changes to Figure 25...................................................................... 14
Changes to Programming Variable Resister Section ................. 19
Changes to Table 13 ....................................................................... 19
Changes to EVAL-ADN2850EBZ Evaluation Kit Section ........ 20
Added Gain Control Compensation Section.............................. 21
Added Programmable Low-Pass Filter Section.......................... 21
Added Programmable Oscillator Section.................................... 21
Added Resistance Tolerance, Drift, and Temperature Coeffcient
Mistmatch Considerations Section.............................................. 24
Changes to Outline Dimensions Section .................................... 25
Changes to Ordering Guide.......................................................... 25
9/02—Rev. A to Rev. B
Changes to General Description .....................................................1
Changes to Electrical Characteristics .............................................2
Changes to Calculating Actual Full-Scale Resistance Section.....9
Changes to Table VI ..........................................................................9
Updated Outline Dimensions....................................................... 18


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