SBOS632 September 2015 INA188


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics: VS = ±4 V to ±18 V (VS = 8 V to 36 V)
    6. 6.6Electrical Characteristics: VS = ±2 V to < ±4 V (VS = 4 V to < 8 V)
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Inside the INA188
      2. 7.3.2Setting the Gain
        1. Drift
      3. 7.3.3Zero Drift Topology
        1. Offset Correction
        2. Performance
        3. Bias Current Clock Feedthrough
      4. 7.3.4 EMI Rejection
      5. 7.3.5Input Protection and Electrical Overstress
      6. 7.3.6Input Common-Mode Range
    4. 7.4Device Functional Modes
      1. 7.4.1Single-Supply Operation
      2. 7.4.2Offset Trimming
      3. 7.4.3Input Bias Current Return Path
      4. 7.4.4Driving the Reference Pin
      5. 7.4.5Error Sources Example
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curve
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Device Support
      1. 11.1.1Development Support
    2. 11.2Documentation Support
      1. 11.2.1Related Documentation
    3. 11.3Community Resources
    4. 11.4Trademarks
    5. 11.5Electrostatic Discharge Caution
    6. 11.6Glossary
  12. 12Mechanical, Packaging, and Orderable Information

11 Device and Documentation Support

11.1 Device Support

11.1.1 Development Support

Table 4. Table 1. Design Kits and Evaluation Modules

DIP Adapter Evaluation ModuleDIP-ADAPTER-EVM Evaluation Module and Boards
Universal Instrumentation Amplifier Evaluation Module INAEVM Evaluation Module and Boards

Table 5. Table 2. Development Tools

Calculate Input Common-Mode Range of Instrumentation AmplifiersINA-CMV-CALC Calculation Tools
SPICE-Based Analog Simulation Program TINA-TI Circuit Design and Simulation

11.2 Documentation Support

11.2.1 Related Documentation

OPA188 Data Sheet, SBOS642

OPA330 Data Sheet, SBOS432

REF3225 Data Sheet, SBVS058

Circuit Board Layout Techniques, SLOA089

11.3 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

11.4 Trademarks

E2E is a trademark of Texas Instruments.

Bluetooth is a registered trademark of Bluetooth SIG, Inc.

PhotoMOS is a registered trademark of Panasonic Electric Works Europe AG.

All other trademarks are the property of their respective owners.

11.5 Electrostatic Discharge Caution


These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

11.6 Glossary

SLYZ022TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.