SBOS115A June   1999  – March 2025 INA133 , INA2133

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Gain Error and Drift
      2. 6.3.2 Input Voltage Range
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Operating Voltage
      2. 7.1.2 Input Voltage
      3. 7.1.3 Offset Voltage Trim
    2. 7.2 Typical Application
    3. 7.3 Additional Applications
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 PSpice® for TI
        2. 8.1.1.2 TINA-TI (Free Software Download)
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.2 Input Voltage Range

The INAx133 difference amplifier is able to achieve a wide input common-mode voltage range by dividing down the input signal with a high-precision resistor divider. The internal resistors divide down the voltage before the voltage reaches the internal op amp and provide protection to the op amp inputs. Figure 6-1 shows an example of how the voltage division works in a difference-amplifier configuration.

INA133 INA2133 Voltage Division in the Difference Amplifier ConfigurationFigure 6-1 Voltage Division in the Difference Amplifier Configuration