Datasheet

ADR121/ADR125/ADR127
Rev. B | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
ADR121 Electrical Characteristics ............................................. 3
ADR125 Electrical Characteristics ............................................. 4
ADR127 Electrical Characteristics ............................................. 5
Absolute Maximum Ratings ............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Typical Performance Characteristics ............................................. 7
Terminology .................................................................................... 15
Theory of Operation ...................................................................... 16
Power Dissipation Considerations ........................................... 16
Input Capacitor ........................................................................... 16
Output Capacitor ........................................................................ 16
Applications Information .............................................................. 17
Basic Voltage Reference Connection ....................................... 17
Stacking Reference ICs for Arbitrary Outputs ....................... 17
Negative Precision Reference Without Precision Resistors .. 17
General-Purpose Current Source ............................................ 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 18
REVISION HISTORY
1/08—Rev. A to Rev. B
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 .............................................................................5
Changes to Figure 52 ...................................................................... 17
Changes to Ordering Guide ......................................................... 18
5/07—Rev. 0 to Rev. A
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................ 5
Added Thermal Hysteresis Equation ............................................. 7
Changes to Ordering Guide .......................................................... 18
6/06—Revision 0: Initial Version