OPA991, OPA2991, OPA4991
SBOS969E – OCTOBER 2019 – REVISED MAY 2021
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Table of Contents
1 Features............................................................................1
2 Applications.....................................................................1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................4
6 Specifications................................................................ 11
6.1 Absolute Maximum Ratings ..................................... 11
6.2 ESD Ratings .............................................................11
6.3 Recommended Operating Conditions ......................11
6.4 Thermal Information for Single Channel .................. 11
6.5 Thermal Information for Dual Channel .....................12
6.6 Thermal Information for Quad Channel ................... 12
6.7 Electrical Characteristics ..........................................13
6.8 Typical Characteristics..............................................16
7 Detailed Description......................................................23
7.1 Overview...................................................................23
7.2 Functional Block Diagram.........................................23
7.3 Feature Description...................................................24
7.4 Device Functional Modes..........................................33
8 Application and Implementation..................................34
8.1 Application Information............................................. 34
8.2 Typical Applications.................................................. 34
9 Power Supply Recommendations................................36
10 Layout...........................................................................36
10.1 Layout Guidelines................................................... 36
10.2 Layout Example...................................................... 37
11 Device and Documentation Support..........................38
11.1 Device Support........................................................38
11.2 Documentation Support.......................................... 38
11.3 Related Links.......................................................... 38
11.4 Receiving Notification of Documentation Updates..38
11.5 Support Resources................................................. 39
11.6 Trademarks............................................................. 39
11.7 Electrostatic Discharge Caution..............................39
11.8 Glossary..................................................................39
12 Mechanical, Packaging, and Orderable
Information.................................................................... 40
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (July 2020) to Revision E (May 2021)
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Deleted preview notation from X2QFN-14 (RUC) package in Device Information ............................................ 1
Deleted preview notation from VSSOP-8 (DGK) package in Device Information ..............................................1
Removed preview notation from X2QFN-14 (RUC) package in Pin Configuration and Functions section ........4
Removed preview notation from VSSOP-8 (DGK) in Pin Configuration and Functions section ........................4
Removed Table of Graphs from the Specifications section...............................................................................11
Changes from Revision C (May 2020) to Revision D (July 2020)
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Updated the numbering format for tables, figures, and cross-references throughout the document..................1
Deleted preview notation from SOIC-14 (D) package in Device Information .....................................................1
Deleted preview notation from SOT-23-5 (DBV) package in Device Information .............................................. 1
Deleted preview notation from SOT-23-6 (DBV) package in Device Information .............................................. 1
Deleted preview notation from SC70 (DCK) package in Device Information .....................................................1
Deleted preview notation from SOT-23-8 (DDF) package in Device Information .............................................. 1
Deleted preview notation from TSSOP-14 (PW) package in Device Information ..............................................1
Removed preview notation on SOT-23-5 (DBV), and SC70 (DCK)....................................................................4
Clarified SHDN notation in the OPA991S Pin Configuration and Functions section ......................................... 4
Removed preview notation from SOT-23-6 (DBV) package in Pin Configuration and Functions section ..........4
Removed preview notation from SOT-23-8 (DDF) package in Pin Configuration and Functions section ..........4
Clarified SHDN notation in OPA2991S Pin Configuration and Functions section ............................................. 4
Removed preview notation from SOIC-14 (D) and TSSOP-14 (PW) packages in Pin Configuration and
Functions section ...............................................................................................................................................4
Clarified SHDN notation in OPA4991S Pin Configuration and Functions section ............................................. 4
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Changes from Revision B (May 2020) to Revision C (May 2020)
Page
Removed preview notation from TSSOP (PW) package in Pin Configuration and Functions section ...............4
Removed preview notation from X2QFN (RUG) package in Pin Configuration and Functions section .............4
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Copyright © 2021 Texas Instruments Incorporated
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