Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

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

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

6 Specifications.................................................................. 5

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

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

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

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

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

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

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

7.1 Overview................................................................... 15

7.2 Functional Block Diagram......................................... 15

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

7.4 Device Functional Modes..........................................18

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

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

8.2 Typical Application.................................................... 27

9 Power Supply Recommendations................................28

10 Layout...........................................................................29

10.1 Layout Guidelines................................................... 29

10.2 Layout Examples.................................................... 29

11 Device and Documentation Support..........................31

11.1 Documentation Support.......................................... 31

11.2 Receiving Notification of Documentation Updates.. 31

11.3 Support Resources................................................. 31

11.4 Trademarks............................................................. 31

11.5 Electrostatic Discharge Caution.............................. 31

11.6 Glossary.................................................................. 31

12 Mechanical, Packaging, and Orderable

Information.................................................................... 31

4 Revision History

Changes from Revision B (February 2021) to Revision C (August 2021)

Page

• Changed data sheet status from Production Mixed to Production Data.............................................................1

• Changed INA2191 device status from Advanced Information to Production Data ............................................ 1

• Added INA191 and INA2191 test conditions to gain error, gain error drift, swing to VS, and enable

logic parameters................................................................................................................................................. 6

• Changed INA191 and INA2191 test conditions for output leakage disabled parameters...................................6

• Changed INA2191 values for the quiescent current parameters for production data.........................................6

• Changed the Typical Characteristics section......................................................................................................8

• Changed INA2191 information in the Low Quiescent Current With Output Enable section............................. 16

• Changed INA2191 information in the Unidirectional Mode section.................................................................. 18

• Changed Figure 8-3 and the filtering information in the Signal Conditioning section....................................... 24

Changes from Revision A (April 2019) to Revision B (February 2021)

Page

• Changed data sheet status from Production Data to Production Mixed.............................................................1

• Added Advanced Information INA2191 device to the data sheet.......................................................................1

Changes from Revision * (February 2019) to Revision A (April 2019)

Page

• Changed device from advanced information to production data (active)........................................................... 1

INA191, INA2191

SLYS020C – FEBRUARY 2019 – REVISED AUGUST 2021

www.ti.com

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