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ADR421BRZ View Datasheet(PDF) - Analog Devices

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ADR421BRZ Datasheet PDF : 24 Pages
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ADR420/ADR421/ADR423/ADR425
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
ADR42x Products............................................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
ADR420 Electrical Specifications............................................... 3
ADR421 Electrical Specifications............................................... 4
ADR423 Electrical Specifications............................................... 5
ADR425 Electrical Specifications............................................... 6
Absolute Maximum Ratings............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 15
Theory of Operation ...................................................................... 16
Device Power Dissipation Considerations.............................. 16
Basic Voltage Reference Connections ..................................... 16
Noise Performance..................................................................... 16
Turn-On Time ............................................................................ 16
Applications..................................................................................... 17
Output Adjustment .................................................................... 17
Reference for Converters in Optical Network Control
Circuits......................................................................................... 17
A Negative Precision Reference Without Precision Resistors
....................................................................................................... 17
High Voltage Floating Current Source .................................... 18
Kelvin Connections.................................................................... 18
Dual-Polarity References........................................................... 18
Programmable Current Source ................................................ 19
Programmable DAC Reference Voltage .................................. 19
Precision Voltage Reference for Data Converters.................. 20
Precision Boosted Output Regulator ....................................... 20
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 22
REVISION HISTORY
6/07—Rev. G to Rev. H
Changes to Table 2............................................................................ 3
Changes to Table 3............................................................................ 4
Changes to Table 4............................................................................ 5
Changes to Table 5............................................................................ 6
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 22
6/05—Rev. F to Rev. G
Changes to Table 1............................................................................ 1
Changes to Ordering Guide .......................................................... 22
2/05—Rev. E to Rev. F
Updated Format..................................................................Universal
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 22
7/04—Rev. D to Rev. E
Changes to Ordering Guide ............................................................ 5
3/04—Rev. C to Rev. D
Changes to Table I ............................................................................ 1
Changes to Ordering Guide ............................................................ 4
Updated Outline Dimensions ....................................................... 16
1/03—Rev. B to Rev. C
Changed Mini_SOIC to MSOP ........................................Universal
Changes to Ordering Guide .............................................................4
Corrections to Y-axis labels in TPCs 21 and 24 ............................9
Enhancement to Figure 13 ............................................................ 15
Updated Outline Dimensions....................................................... 16
3/02—Rev. A to Rev. B
Edits to Ordering Guide ...................................................................4
Deletion of Precision Voltage Regulator section........................ 15
Addition of Precision Boosted Output Regulator section ....... 15
Addition of Figure 13..................................................................... 15
10/01—Rev. 0 to Rev. A
Addition of ADR423 and ADR425 to
ADR420/ADR421............................................................... Universal
5/01—Revision 0: Initial Version
Rev. H | Page 2 of 24
 

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