Table of Contents

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

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

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

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

5 Pin Configuration and Functions...................................4

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 Application and Implementation.................................. 13

7.1 Application Information............................................. 13

7.2 Typical Application.................................................... 13

8 Device and Documentation Support............................18

8.1 Receiving Notification of Documentation Updates....18

8.2 Support Resources................................................... 18

8.3 Trademarks...............................................................18

8.4 Electrostatic Discharge Caution................................18

8.5 Glossary....................................................................18

9 Mechanical, Packaging, and Orderable Information.. 18

4 Revision History

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

Changes from Revision A (April 2007) to Revision B (May 2023)

Page

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

• Added the Package Information table, and the Pin Configuration and Functions, Specifications, Detailed

Description, Application and Implementation, Device and Documentation Support, and Mechanical,

Packaging, and Orderable Information sections.................................................................................................1

• Added input voltage noise, high bandwidth, and temperature range bullets to Features ..................................1

• Changed Features bullet to show correct package name.................................................................................. 1

• Changed Applications bullets to show updated links..........................................................................................1

• Changed Package Information table column name from BODY SIZE (NOM) to PACKAGE SIZE and added

note regarding the package size........................................................................................................................ 1

• 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 test conditions below Electrical Characterstics title................................................................................6

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

TMAX" to " TA = –40

℃ to +85℃" for clarity........................................................................................................6

• Changed "±0.5±0/G" to "±0.5±20/G" in MAX column of Offset voltage RTI vs temperature row of Electrical

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

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

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

• Deleted typical specification and changed common-mode voltage specification from (V–) + 2 V minimum and

(V+) – 2 V maximum across one row in Electrical Characteristics..................................................................... 6

• Deleted typical VCM specifications in Electrical Characteristics ....................................................................... 6

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

............................................................................................................................................................................6

• Changed parameter name to Input bias current and added test condition "TA = –40°C to +85°C" to input bias

current drift specification in Electrical Characteristics for clarity......................................................................... 6

• Changed parameter name to Input offset current drift and added test condition "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

INA2128

SBOS035B – DECEMBER 1995 – REVISED MAY 2023

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