OPA391 datasheet(2/40 Pages) TI1

2 / 40 page

Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

4 Pin Configuration and Functions...................................2

5 Specifications.................................................................. 5

5.1 Absolute Maximum Ratings........................................ 5

5.2 ESD Ratings............................................................... 5

5.3 Recommended Operating Conditions.........................5

5.4 Thermal Information: OPA391.................................... 6

5.5 Thermal Information: OPA2391.................................. 6

5.6 Thermal Information: OPA4391.................................. 6

5.7 Electrical Characteristics: OPA391DCK and

OPA2391YBJ................................................................ 7

5.8 Electrical Characteristics: OPA4391PW..................... 9

5.9 Typical Characteristics.............................................. 11

6 Detailed Description......................................................18

6.1 Overview................................................................... 18

6.2 Functional Block Diagram......................................... 18

6.3 Feature Description...................................................19

6.4 Device Functional Modes..........................................20

7 Application and Implementation.................................. 21

7.1 Application Information............................................. 21

7.2 Typical Applications.................................................. 21

7.3 Power Supply Recommendations.............................25

7.4 Layout....................................................................... 25

8 Device and Documentation Support............................26

8.1 Device Support......................................................... 26

8.2 Documentation Support............................................ 26

8.3 Receiving Notification of Documentation Updates....26

8.4 Support Resources................................................... 26

8.5 Trademarks...............................................................26

8.6 Electrostatic Discharge Caution................................27

8.7 Glossary....................................................................27

9 Revision History............................................................ 27

10 Mechanical, Packaging, and Orderable

Information.................................................................... 27

4 Pin Configuration and Functions

OUT

V±

+IN

±IN

V+

Not to scale

Figure 4-1. OPA391: DBV Package (Preview), 5-Pin

SOT-23 (Top View)

+IN

V±

±IN

OUT

V+

Not to scale

Figure 4-2. OPA391: DCK Package, 5-Pin SC-70

(Top View)

Table 4-1. Pin Functions: OPA391

TYPE

DESCRIPTION

NAME

NO.

DBV (SOT-23)

DCK (SC70)

–IN

Input

Inverting input

+IN

Input

Noninverting input

OUT

Output

V–

Power

Negative (lowest) power supply

V+

Power

Positive (highest) power supply

OPA391, OPA2391, OPA4391

SBOS925D – DECEMBER 2020 – REVISED APRIL 2024

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Product Folder Links: OPA391 OPA2391 OPA4391

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