Table of Contents

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

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

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

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

5 Device Comparison Table...............................................4

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

7 Specifications.................................................................. 5

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

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

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

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

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

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

8 Detailed Description......................................................12

8.1 Overview................................................................... 12

8.2 Functional Block Diagram......................................... 12

8.3 Feature Description...................................................13

8.4 Device Functional Modes..........................................13

9 Application and Implementation.................................. 14

9.1 Application Information............................................. 14

9.2 Typical Application.................................................... 15

9.3 System Examples..................................................... 19

10 Power Supply Recommendations..............................21

10.1 Low-Voltage Operation........................................... 21

11 Layout........................................................................... 21

11.1 Layout Guidelines................................................... 21

11.2 Layout Example...................................................... 21

12 Device and Documentation Support..........................22

12.1 Device Support....................................................... 22

12.2 Documentation Support.......................................... 22

12.3 Receiving Notification of Documentation Updates..22

12.4 Support Resources................................................. 22

12.5 Trademarks.............................................................22

12.6 Electrostatic Discharge Caution..............................23

12.7 Glossary..................................................................23

13 Mechanical, Packaging, and Orderable

Information.................................................................... 23

4 Revision History

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

Changes from Revision E (April 2019) to Revision F (May 2022)

Page

• Updated the numbering format for tables, figures, and cross-references throughout the document..................1

• Added bandwidth and noise specifications in Features .....................................................................................1

• Changed Applications to link to latest end-equipment solutions on ti.com......................................................... 1

• Changed reference from INA819 to INA818 in Device Comparison Table ........................................................ 4

• Added single supply specification to Absolute Maximum Ratings ..................................................................... 5

• Added note clarifying output short-circuit "to ground" in Absolute Maximum Ratings refers to short-circuit to

VS / 2...................................................................................................................................................................5

• Added single supply specification to Recommended Operating Conditions ......................................................5

• Changed input common-mode voltage range specification from V – 2 to (V–) + 2 in Recommended Operating

Conditions ..........................................................................................................................................................5

• Deleted INA128-HT and INA129-HT operating temperature specifications from Recommended Operating

Conditions ..........................................................................................................................................................5

• Added specified temperature range to Recommended Operating Conditions .................................................. 5

• Added VREF = 0 V, VCM = VS / 2, and G = 1 to "unless otherwise noted" conditions in Electrical

Characteristics and Typical Characteristics for clarity.........................................................................................6

• Changed test condition for offset voltage drift specification in Electrical Characteristics from "TA = TMIN

to TMAX" to "TA = –40°C to +85°C" for clarity...................................................................................................... 6

• Changed typical long-term stability specification from ±0.1±3/G µV/mo to ±0.2±3/G µV/mo in Electrical

Characteristics ................................................................................................................................................... 6

• Changed common-mode voltage specification from (V–) + 2 V minimum and (V+) – 2 V minimum across two

rows to (V– ) + 2 V minimum and (V+) – 2 V maximum across one row in Electrical Characteristics ...............6

• Deleted typical common-mode voltage specifications in Electrical Characteristics ..........................................6

• Added test condition of "RS = 0 Ω" to safe input voltage specification in Electrical Characteristics for clarity....6

• Added test condition of "TA = –40°C to +85°C" to input bias current drift specification in Electrical

Characteristics for clarity.................................................................................................................................... 6

• Added test condition of "TA = –40°C to +85°C" to input offset current drift specification in Electrical

Characteristics for clarity.................................................................................................................................... 6

• Changed maximum gain error specification for INA128PA/UA and INA129PA/UA with G = 1 from ±0.01%

to ±0.1% in Electrical Characteristics ................................................................................................................ 6

INA128, INA129

SBOS051F – OCTOBER 1995 – REVISED MAY 2022

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