SBOSAA5C april   2022  – may 2023 OPA2675

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Family Comparison Table
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics: Full Bias and Offline Mode VS = ±6 V
    6. 7.6  Electrical Characteristics: 75% Bias Mode VS = ±6 V
    7. 7.7  Electrical Characteristics: 50% Bias Mode VS = ±6 V
    8. 7.8  Electrical Characteristics: DIfferential Output  VS = 12 V
    9. 7.9  Electrical Characteristics: VS = 5 V
    10. 7.10 Typical Characteristics: VS = ±6 V, Full Bias
    11. 7.11 Typical Characteristics: VS = ±6 V Differential, Full Bias
    12. 7.12 Typical Characteristics: VS = ±6 V, 75% Bias
    13. 7.13 Typical Characteristics: VS = ±6 V, 50% Bias
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Operating Suggestions
        1. 8.3.1.1 Setting Resistor Values to Optimize Bandwidth
        2. 8.3.1.2 Output Current and Voltage
        3. 8.3.1.3 Driving Capacitive Loads
        4. 8.3.1.4 Line Driver Headroom Model
        5. 8.3.1.5 Noise Performance
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 High-Speed Active Filter
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Thermal Analysis
      2. 9.3.2 Input and ESD Protection
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 TINA-TI™ Simulation Software (Free Download)
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.3.1.2 Output Current and Voltage

The OPA2675 provides output voltage and current capabilities that are unsurpassed in a low-cost dual monolithic op amp. Under no-load conditions at +25°C, the output voltage typically swings closer than 1.1 V to either supply rail; the tested (+25°C) swing limit is within 1.2 V of either rail. The OPA2675 is capable of delivering around 1000 mA of source and sink current at room temperature. Figure 8-4 and Figure 8-5 shows the relation between current output of the OPA2675 at different temperatures and maximum voltage swing at that current output under loaded conditions.

GUID-20220325-SS0I-KSDF-H11L-PQCTWGB1NXKC-low.svgFigure 8-4 Output Headroom vs Output Current
GUID-20211109-SS0I-RG65-RVW8-LXTJ4HWQF6FD-low.svgFigure 8-5 Output Voltage and Current Limitations

For the specifications described previously, consider voltage and current limits separately. In many applications, the voltage times the current (or V-I product) is more relevant to circuit operation. Figure 8-5 shows the zero-voltage output current limit and the zero-current output voltage limit on the X- and Y-axes, respectively. The four quadrants give a more detailed view of the OPA2675 output drive capabilities, noting that the graph is bounded by a safe operating area of 2 W maximum internal power dissipation (in this case, for one channel only). Superimposing resistor load lines onto the plot shows that the OPA2675 can drive ±4 V into 10 Ω or ±4.5 V into 25 Ω without exceeding the output capabilities or the 2-W dissipation limit.