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INA138-Q1, INA168-Q1

SGLS174J – SEPTEMBER 2003 – REVISED AUGUST 2018

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Product Folder Links: INA138-Q1 INA168-Q1

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Copyright © 2003–2018, Texas Instruments Incorporated

Table of Contents

1

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

2

Applications ........................................................... 1

3

Description ............................................................. 1

4

Revision History..................................................... 2

5

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

6

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

6.1

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

6.2

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

6.3

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

6.4

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

6.5

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

6.6

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

7

Detailed Description .............................................. 9

7.1

Overview ................................................................... 9

7.2

Functional Block Diagram ......................................... 9

7.3

Feature Description................................................. 10

7.4

Device Functional Modes........................................ 10

8

Application and Implementation ........................ 10

8.1

Application Information............................................ 10

8.2

Typical Applications ................................................ 12

9

Power Supply Recommendations ...................... 19

10

Layout................................................................... 19

10.1

Layout Guidelines ................................................. 19

10.2

Layout Example .................................................... 19

11

Device and Documentation Support ................. 20

11.1

Documentation Support ........................................ 20

11.2

Related Links ........................................................ 20

11.3

Receiving Notification of Documentation Updates 20

11.4

Community Resources.......................................... 20

11.5

Trademarks ........................................................... 20

11.6

Electrostatic Discharge Caution ............................ 20

11.7

Glossary ................................................................ 20

12

Mechanical, Packaging, and Orderable

Information ........................................................... 20

4 Revision History

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

Changes from Revision I (January 2018) to Revision J

Page

•

Added "VSENSE =" to differential analog input voltage label in Absolute Maximum Ratings table .......................................... 5

•

Changed maximum differential analog input voltage from 2 V to 40 V in Absolute Maximum Ratings table ........................ 5

•

Added new note 2 to Absolute Maximum Ratings table ........................................................................................................ 5

•

Added output current row with upper limit of 400 µA to Absolute Maximum Ratings table ................................................... 5

Changes from Revision H (May 2016) to Revision I

Page

•

Changed Thermal Information data for INA168-Q1 DBV device .......................................................................................... 6

Changes from Revision G (January 2014) to Revision H

Page

•

Changed Application bullets .................................................................................................................................................. 1

•

Added Device Information, ESD Ratings, Recommended Operating Conditions, and Thermal Information tables,

and Feature Description, Application and Implementation, Power Supply Recommendations, Layout, Device and

Documentation Support, and Mechanical, Packaging, and Orderable Information sections ................................................. 1

•

Added new automotive qualification features bullet, and deleted old bullet........................................................................... 1

•

Added pin names to all figures and removed all pin numbers ............................................................................................... 1

•

Deleted Ordering Information table; information available in the Package Option Addendum at the end of this data sheet 4

•

Added missing minus sign to VIN– pin in pin configuration figures ......................................................................................... 4

•

Deleted thermal resistance from Absolute Maximum Ratings table; see new Thermal Information table ............................. 5

•

Changed RθJA value for both packages .................................................................................................................................. 6

•

Changed VS to V+ throughout data sheet for consistency ..................................................................................................... 6

•

Changed ROUT in Electrical Characteristics table to RL for consistency ................................................................................. 6

•

Changed VIN to VSENSE in Figure 4 ......................................................................................................................................... 7

•

Deleted VS symbol from text regarding voltage drop in Operation section ......................................................................... 10

•

Changed 10 µA to 100 µA in Operation section (typo) ........................................................................................................ 10

•

Changed Figure 9; removed incorrect pin numbers, and moved embedded table to outside of figure ............................... 11