SBOS584F November   2011  – September 2026 OPA180 , OPA2180 , OPA4180

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: OPA180
    5. 6.5 Thermal Information: OPA2180
    6. 6.6 Thermal Information: OPA4180
    7. 6.7 Electrical Characteristics: VS = ±2V to ±18V (VS = 4V to 36V)
    8. 6.8 Typical Characteristics: Table of Graphs
    9. 6.9 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Characteristics
      2. 7.3.2 EMI Rejection
      3. 7.3.3 Phase-Reversal Protection
      4. 7.3.4 Capacitive Load and Stability
      5. 7.3.5 Electrical Overstress
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Bipolar ±10V Analog Output from a Unipolar Voltage Output DAC
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Component Selection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Discrete INA + Attenuation
      3. 8.2.3 RTD Amplifier
    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 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.2 Discrete INA + Attenuation

The OPAx180 family can be used as a high-voltage, high-impedance front-end for a precision, discrete instrumentation amplifier with attenuation. The INA159 in Figure 8-4 provides the attenuation that allows this circuit to simply interface with 3.3V or 5V analog-to-digital converters (ADCs).

OPA180 OPA2180 OPA4180 Discrete INA + Attenuation for ADC With a 3.3V SupplyFigure 8-4 Discrete INA + Attenuation for ADC With a 3.3V Supply