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REF3425-EP, REF3440-EP

SBAS942 – DECEMBER 2018

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Product Folder Links: REF3425-EP REF3440-EP

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Copyright © 2018, Texas Instruments Incorporated

Table of Contents

1

Features .................................................................. 1

2

Applications ........................................................... 1

3

Description ............................................................. 1

4

Revision History..................................................... 2

5

Device Comparison Table..................................... 3

6

Pin Configuration and Functions ......................... 3

7

Specifications......................................................... 4

7.1

Absolute Maximum Ratings ...................................... 4

7.2

ESD Ratings.............................................................. 4

7.3

Recommended Operating Conditions ....................... 4

7.4

Thermal Information .................................................. 4

7.5

Electrical Characteristics........................................... 5

7.6

Typical Characteristics .............................................. 7

8

Parameter Measurement Information ................ 10

8.1

Solder Heat Shift ..................................................... 10

8.2

Power Dissipation ................................................... 11

8.3

Noise Performance ................................................. 12

9

Detailed Description ............................................ 13

9.1

Overview ................................................................. 13

9.2

Functional Block Diagram ....................................... 13

9.3

Feature Description................................................. 13

9.4

Device Functional Modes........................................ 14

10

Application and Implementation........................ 15

10.1

Application Information.......................................... 15

10.2

Typical Application: Basic Voltage Reference

Connection ............................................................... 15

11

Power Supply Recommendations ..................... 17

12

Layout................................................................... 18

12.1

Layout Guidelines ................................................. 18

12.2

Layout Example .................................................... 18

13

Device and Documentation Support ................. 19

13.1

Documentation Support ........................................ 19

13.2

Related Links ........................................................ 19

13.3

Receiving Notification of Documentation Updates 19

13.4

Community Resources.......................................... 19

13.5

Trademarks ........................................................... 19

13.6

Electrostatic Discharge Caution ............................ 19

13.7

Glossary ................................................................ 19

14

Mechanical, Packaging, and Orderable

Information ........................................................... 20

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

DATE

REVISION

NOTES

December 2018

*

Initial release.