• Added Figure 5-2 and updated Table 5-1 with REF50xxEI information..............................................................4

• Added Input voltage for REF50xxE.................................................................................................................... 5

• Added output voltage rating................................................................................................................................5

• Added ESD information for REF50xxE...............................................................................................................5

• Added input voltage for REF50xxE.................................................................................................................... 5

• Added NR pin voltage recommendation for REF50xxE..................................................................................... 5

• Added thermal rating for REF50xxE...................................................................................................................6

• Added electrical table for REF50xxE..................................................................................................................9

• Added electrical table for REF50xxE..................................................................................................................9

• Added the part no in the description.................................................................................................................11

• Added typical characteristics for REF50xxE.....................................................................................................16

• Added block diagram for REF50xxE ............................................................................................................... 23

• Added temperature equation for REF50xxE ....................................................................................................24

• Added temp drift spec for REF50xxE .............................................................................................................. 24

• Updated REF50xx to REF50xxI, REF50xxAI .................................................................................................. 26

• Added layout guideline for REF50xxEI ............................................................................................................30

• Updated the title for Figure 11-1 and added Figure 11-2..................................................................................30

Changes from Revision J (July 2022) to Revision K (June 2023)

Page

• Changed VSSOP 2000 hours LTD infromation line to SOIC -8 1000 hours LTD information............................ 1

• Changed Figure 6-28 .......................................................................................................................................11

• Changed Figure 6-29 .......................................................................................................................................11

• Changed Figure 6-30 .......................................................................................................................................11

• Added noise density plot Figure 6-14 .............................................................................................................. 11

• Changed title of flicker noise plot Figure 6-13 ................................................................................................. 11

• Changed all the load transient plot Figure 6-17 Figure 6-18 Figure 6-19 Figure 6-20 .....................................11

• Changed the plot Figure 8-5 ............................................................................................................................26

Changes from Revision I (February 2020) to Revision J (July 2022)

Page

• Updated the numbering format for tables, figures, and cross-references throughout the document................. 1

Changes from Revision H (June 2016) to Revision I (February 2020)

Page

• Changed Long-Term Stability Graphs for VSSOP ........................................................................................... 11

• Added section on Long-Term Stability .............................................................................................................25

14 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most

current data available for the designated devices. This data is subject to change without notice and revision of

this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

REF50, REF50E

SBOS410N – JUNE 2007 – REVISED MARCH 2025

www.ti.com

32

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