SBOS153B September 2000  – January 2016 OPA541

PRODUCTION DATA. 

  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
    6. 6.6Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
    4. 7.4Device Functional Modes
  8. Application and Implementation
    1. 8.1Application Information
      1. 8.1.1Current Limit
      2. 8.1.2Heat Sinking
      3. 8.1.3Safe Operating Area
      4. 8.1.4Replacing Hybrid Power Amplifiers
    2. 8.2Typical Applications
      1. 8.2.1Clamping Output for EMF-Generating Loads
        1. 8.2.1.1Design Requirements
        2. 8.2.1.2Detailed Design Procedure
          1. 8.2.1.2.1Power Supply Requirements
          2. 8.2.1.2.2Current Limit and SOA (Safe Operating Area)
          3. 8.2.1.2.3Heat Sinking
        3. 8.2.1.3Application Curve
      2. 8.2.2Paralleled Operation, Extended SOA
        1. 8.2.2.1Design Requirements
      3. 8.2.3Programmable Voltage Source
        1. 8.2.3.1Design Requirements
      4. 8.2.416-Bit Programmable Voltage Source
        1. 8.2.4.1Design Requirements
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Documentation Support
      1. 11.1.1Related Documentation
    2. 11.2Community Resources
    3. 11.3Trademarks
    4. 11.4Electrostatic Discharge Caution
    5. 11.5Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information

7 Detailed Description

7.1 Overview

The OPA541 uses a JFET input stage, followed by a main voltage gain stage, and a class A/B high current output stage.

7.2 Functional Block Diagram

OPA541 OPA541_Functional_Block_Diagram_sbos153.gif

7.3 Feature Description

The OPA541 JFET input stage reduces circuit loading and input bias currents. The class A/B high current output stage incorporates temperature compensated biasing to reduce crossover distortion. The output stage also includes a user settable current limit for amplifier and circuit protection.

7.4 Device Functional Modes

The OPA541 has a single functional mode. The OPA541 is operational when the power supply voltage exceeds 10 V (±5 V) and less than 80 V (±40 V).