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INA180, INA2180, INA4180

SBOS741C – APRIL 2017 – REVISED DECEMBER 2017

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Product Folder Links: INA180 INA2180 INA4180

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Copyright © 2017, 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 Configurations and Functions ....................... 3

7

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

7.1

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

7.2

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

7.3

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

7.4

Thermal Information .................................................. 5

7.5

Electrical Characteristics........................................... 6

7.6

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

8

Detailed Description ............................................ 14

8.1

Overview ................................................................. 14

8.2

Functional Block Diagrams ..................................... 14

8.3

Feature Description................................................. 16

8.4

Device Functional Modes........................................ 17

9

Application and Implementation ........................ 19

9.1

Application Information............................................ 19

9.2

Typical Application .................................................. 23

10

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

10.1

Common-Mode Transients Greater Than 26 V .... 25

11

Layout................................................................... 26

11.1

Layout Guidelines ................................................. 26

11.2

Layout Examples................................................... 26

12

Device and Documentation Support ................. 29

12.1

Documentation Support ........................................ 29

12.2

Related Links ........................................................ 29

12.3

Receiving Notification of Documentation Updates 29

12.4

Community Resources.......................................... 29

12.5

Trademarks ........................................................... 29

12.6

Electrostatic Discharge Caution ............................ 29

12.7

Glossary ................................................................ 29

13

Mechanical, Packaging, and Orderable

Information ........................................................... 30

4 Revision History

Changes from Revision B (November 2017) to Revision C

Page

•

Changed INA2180 device from preview to production data (active) ...................................................................................... 1

•

Added "Both Inputs" to Figure 21 title ................................................................................................................................... 9

•

Added new Figure 24 for INA2180 ......................................................................................................................................... 9

•

Added new Figure 25 placeholder for INA4180 ................................................................................................................... 10

•

Added new Figure 27 for INA2180 ....................................................................................................................................... 10

•

Added new Figure 28 placeholder for INA4180 ................................................................................................................... 10

•

Changed Figure 29 ............................................................................................................................................................... 10

•

Added "(A3 Devices)" to end of Figure 29 title ..................................................................................................................... 10

•

Added new Figure 38 for INA2180 ....................................................................................................................................... 12

•

Changed "less than 150 µV" to "within ±150 µV" regarding offset voltage in Precise Low-Side Current Sensing section.. 16

•

Added text regarding RC filter and reference to application report to note at the bottom of Figure 45 ............................... 19

•

•

•

Added link to reference design TIDA-00302 to end of Common-Mode Transients Greater Than 26 V section .................. 25

•

Added new bullet to Layout Guidelines section.................................................................................................................... 26

Changes from Revision A (August 2017) to Revision B

Page

•

Added INA4180 preview device and associated content to data sheet ................................................................................. 1

•

Changed design parameter name in Table 3 from "Accuracy" to "Current sensing error" for clarity .................................. 23

•

Changed "RMS" to "RSS" in reference to equation 7 .......................................................................................................... 24

Changes from Original (April 2017) to Revision A

Page

•

Added INA2180 preview device and associated content to data sheet ................................................................................. 1