SLVSIL6C January   2026  – April 2026 INA151

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 INA151 Transconductance Architecture Overview
      2. 7.1.2 Multiplexing Capability
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Common-Mode Voltage Range
      2. 7.3.2 Low Input Bias Current
      3. 7.3.3 Reference Voltage Range for G=1/4 (INA151D)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Output Enable and Disable
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Reference Pin
    2. 8.2 Typical Applications
      1. 8.2.1 Battery Monitoring Using INA151
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 DC Accuracy Calculations
          2. 8.2.1.2.2 RC Filter Design Consideration
          3. 8.2.1.2.3 ADC Input Protection
        3. 8.2.1.3 Output Pullup Resistor in Multiplexer Configuration
        4. 8.2.1.4 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The INA151 is a precision difference amplifier with an input common-mode voltage range of up to 110V above negative supply (recommended). The INA151 can accurately measure voltages in the presence of high common-mode voltage with a high common-mode rejection ratio of 125dB minimum and common-mode input impedance of >1.4MΩ and an offset voltage drift of 0.6μV/ºC for gain of 1V/V.

The INA151 is offered in gain options of 1V/V (INA151A), 2/3V/V (INA151B), 1/2V/V (INA151C) and 1/4V/V ( INA151D).

The INA151 has an Enable/Disable (EN) pin that provide a high-impedance output to allow stacking multiple INA151 on the outputs. In many applications this reduces the need for an input multiplexer.

The INA151 is offered in standard 8-pin packages such as SOT-23.

Package Information
PART NUMBER(1)VERSIONPACKAGE(2)PACKAGE SIZE(3)
INA151 A (G=1)DDF (SOT-23, 8) 2.9mm × 2.8mm
B (G=2/3)
C (G=1/2)
D (G=1/4)
(2) For more information, see Section 11.
(3) The package size (length × width) is a nominal value and includes pins, where applicable.