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ADN2850BRUZ25 Datasheet(PDF) 2 Page - Analog Devices |
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ADN2850BRUZ25 Datasheet(HTML) 2 Page - Analog Devices |
2 / 28 page 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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