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INA181-Q1, INA2181-Q1, INA4181-Q1

SLYS018A – APRIL 2018 – REVISED JULY 2018

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INA2181-Q1 INA4181-Q1

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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......................................................... 6

7.1

Absolute Maximum Ratings ..................................... 6

7.2

ESD Ratings.............................................................. 6

7.3

Recommended Operating Conditions ....................... 6

7.4

Thermal Information .................................................. 6

7.5

Electrical Characteristics........................................... 7

7.6

Typical Characteristics .............................................. 8

8

Detailed Description ............................................ 15

8.1

Overview ................................................................. 15

8.2

Functional Block Diagrams ..................................... 15

8.3

Feature Description................................................. 17

8.4

Device Functional Modes........................................ 19

9

Application and Implementation ........................ 22

9.1

Application Information............................................ 22

9.2

Typical Application .................................................. 29

10

Power Supply Recommendations ..................... 31

10.1

Common-Mode Transients Greater Than 26 V .... 31

11

Layout................................................................... 32

11.1

Layout Guidelines ................................................. 32

11.2

Layout Example .................................................... 32

12

Device and Documentation Support ................. 35

12.1

Device Support...................................................... 35

12.2

Documentation Support ........................................ 35

12.3

Related Links ........................................................ 35

12.4

Receiving Notification of Documentation Updates 35

12.5

Community Resources.......................................... 35

12.6

Trademarks ........................................................... 35

12.7

Electrostatic Discharge Caution ............................ 35

12.8

Glossary ................................................................ 36

13

Mechanical, Packaging, and Orderable

Information ........................................................... 36

4 Revision History

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

Changes from Original (April 2018) to Revision A

Page

•

Changed INA4181-Q1 device from preview to production data (active) ................................................................................ 1

•

Changed instances of INAx180 to INAx181 in Pin Configurations and Functions (typos)..................................................... 3