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INA138, INA168

SBOS122E – DECEMBER 1999 – REVISED DECEMBER 2017

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Copyright © 1999–2017, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Pin Configuration and Functions ......................... 3

6

Specifications......................................................... 4

6.1

Absolute Maximum Ratings ...................................... 4

6.2

ESD Ratings ............................................................ 4

6.3

Recommended Operating Conditions ....................... 4

6.4

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

6.5

Electrical Characteristics........................................... 5

6.6

Typical Characteristics .............................................. 6

7

Detailed Description .............................................. 8

7.1

Overview ................................................................... 8

7.2

Functional Block Diagram ......................................... 8

7.3

Feature Description................................................... 9

7.4

Device Functional Modes.......................................... 9

8

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

8.1

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

8.2

Typical Applications ............................................... 11

9

Power Supply Recommendations ...................... 18

10

Layout................................................................... 18

10.1

Layout Guidelines ................................................. 18

10.2

Layout Example .................................................... 18

11

Device and Documentation Support ................. 19

11.1

Documentation Support ....................................... 19

11.2

Related Links ........................................................ 19

11.3

Receiving Notification of Documentation Updates 19

11.4

Community Resources.......................................... 19

11.5

Trademarks ........................................................... 19

11.6

Electrostatic Discharge Caution ............................ 19

11.7

Glossary ................................................................ 19

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 D (December 2014) to Revision E

Page

•

Added reference design link to navigation bar at the top of the front page ........................................................................... 1

•

Changed body size from 18.00 mm × 18.00 mm to 2.90 mm × 1.60 mm in Device Information table.................................. 1

•

Changed pin numbers in pin functions table to match pin configuration figure...................................................................... 3

•

Changed Absolute Maximum Ratings table for clarity; no values were changed ................................................................. 4

•

Changed Recommended Operating Conditions table; moved some content from Electrical Characteristics table, but

no values changed ................................................................................................................................................................. 4

•

Changed all values in Thermal Information table ................................................................................................................... 5

•

Changed Electrical Characteristics table; reformatted for clarity; moved some content to Recommended Operating

Conditions table, and deleted duplicate content..................................................................................................................... 5

•

Changed common-mode rejection test conditions to better highlight each device in Electrical Characteristics table .......... 5

•

Changed offset voltage vs temperature to offset voltage drift in Electrical Characteristics table........................................... 5

•

Changed offset voltage vs power supply test conditions to better highlight each device in Electrical Characteristics table . 5

•

Changed reference in text from Figure 10 to Figure 11 in last paragraph of Selecting the Shunt Resistor and RL section 12

Changes from Revision C (November 2005) to Revision D

Page

•

Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation

section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and

Mechanical, Packaging, and Orderable Information section. ................................................................................................ 1