SLOSEE7 May   2025 OPA810-Q1

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: 24V
    6. 6.6 Electrical Characteristics: 5V
    7. 6.7 Typical Characteristics: VS = 24V
    8. 6.8 Typical Characteristics: VS = 5V
    9. 6.9 Typical Characteristics: ±2.375V to ±12V Split Supply
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Architecture
      2. 7.3.2 ESD Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Split-Supply Operation (±2.375V to ±13.5V)
      2. 7.4.2 Single-Supply Operation (4.75V to 27V)
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Amplifier Gain Configurations
      2. 8.1.2 Selection of Feedback Resistors
      3. 8.1.3 Noise Analysis and the Effect of Resistor Elements on Total Noise
    2. 8.2 Typical Applications
      1. 8.2.1 Transimpedance Amplifier
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Multichannel Sensor Interface
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Thermal Considerations
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.4.1 Split-Supply Operation (±2.375V to ±13.5V)

To facilitate testing with common lab equipment, the OPA810-Q1 can be configured to allow for split-supply operation (see the SOT-23 5-pin or 6-pin Evaluation Module user guide). This configuration eases lab testing because the mid-point between the power rails is ground, and most signal generators, network analyzers, oscilloscopes, spectrum analyzers, and other lab equipment reference the inputs and outputs to ground. Figure 8-1 depicts the OPA810-Q1 configured as a noninverting amplifier and Figure 8-2 illustrates the OPA810-Q1 configured as an inverting amplifier. For split-supply operation referenced to ground, the power supplies VS+ and VS– are symmetrical around ground and VREF is at GND. Split-supply operation is preferred in systems where the signals swing around ground because of the ease-of-use; however, the system requires two supply rails.