Table of Contents

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

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

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

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

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

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

7 Specifications.................................................................. 4

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

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

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

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

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

7.6 Typical Characteristics................................................ 8

8 Detailed Description......................................................16

8.1 Overview................................................................... 16

8.2 Functional Block Diagram......................................... 16

8.3 Feature Description...................................................17

8.4 Device Functional Modes..........................................18

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

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

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

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

11 Layout........................................................................... 25

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

11.2 Layout Example...................................................... 26

12 Device and Documentation Support..........................27

12.1 Documentation Support.......................................... 27

12.2 Receiving Notification of Documentation Updates..27

12.3 Support Resources................................................. 27

12.4 Trademarks.............................................................27

12.5 Electrostatic Discharge Caution..............................27

12.6 Glossary..................................................................27

13 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 Revision A (December 2020) to Revision B (April 2021)

Page

• Changed DGK (VSSOP-8) package from advanced information (preview) to production data (active) ............1

• Changed typical value of current noise from 1.6 pA/√Hz to 1.1 pA/√(Hz).......................................................... 5

• Added note 9...................................................................................................................................................... 5

• Changed Figure 7-25, Current Noise Spectral Density vs Frequency (RTI) ......................................................8

• Changed Figure 7-42, Total Harmonic Distortion vs Frequency ........................................................................ 8

• Changed Figure 7-43, Total Harmonic Distortion vs Frequency at Different Loads ...........................................8

• Changed Figure 7-44, Second Harmonic Distortion vs Frequency ................................................................... 8

• Changed Figure 7-45, Third Harmonic Distortion vs Frequency ....................................................................... 8

Changes from Revision * (November 2020) to Revision A (December 2020)

Page

• Changed INA849 device from advanced information (preview) to production data (active)...............................1

• Added preview DGK package and associated content.......................................................................................1

INA849

SBOS945B – NOVEMBER 2020 – REVISED APRIL 2021

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