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INA240-Q1

SBOS808A – AUGUST 2016 – REVISED DECEMBER 2016

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Product Folder Links: INA240-Q1

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Copyright © 2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Description (cont.) ................................................. 2

6

Device Comparison Table..................................... 3

7

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

8

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

8.1

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

8.2

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

8.3

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

8.4

Thermal Information .................................................. 4

8.5

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

8.6

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

9

Detailed Description ............................................ 10

9.1

Overview ................................................................. 10

9.2

Functional Block Diagram ....................................... 10

9.3

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

9.4

Device Functional Modes........................................ 12

10

Application and Implementation........................ 18

10.1

Application Information.......................................... 18

10.2

Typical Applications .............................................. 20

10.3

Do's and Don'ts .................................................... 24

11

Power Supply Recommendations ..................... 24

11.1

Power Supply Decoupling ..................................... 24

12

Layout................................................................... 25

12.1

Layout Guidelines ................................................. 25

12.2

Layout Example .................................................... 25

13

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

13.1

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

13.2

Related Links ........................................................ 26

13.3

Receiving Notification of Documentation Updates 26

13.4

Community Resources.......................................... 26

13.5

Trademarks ........................................................... 26

13.6

Electrostatic Discharge Caution ............................ 26

13.7

Glossary ................................................................ 26

14

Mechanical, Packaging, and Orderable

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

4 Revision History

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

Changes from Original (August 2016) to Revision A

Page

•

Added 8-pin D (SOIC) package for the INA240-Q1 Grade 0 and Grade 1 device ............................................................... 1

•

Added thermal values for the D (SOIC) package in the Thermal Information table .............................................................. 4

5 Description (cont.)

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current.

Four fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture

enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. Grade 1 versions are

specified over the extended operating temperature range (–40°C to +125°C) and are offered in an 8-pin TSSOP

and 8-pin SOIC packages. Grade 0 versions are specified over the extended operating temperature range

(–40°C to +150°C) and are offered in an 8-pin SOIC package.