SNOSAV4C April   2008  – August 2026 LM7332

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 ESD Ratings
    3. 5.3 Thermal Information
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
    7. 5.7 Old vs. New Die Comparison
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
      1. 6.3.1 Driving Capacitive Loads
    4. 6.4 Electrical Overstress
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Output Short Circuit Current and Dissipation Issues
  9. 8 Device and Documentation Support
    1. 8.1 Support Resources
    2. 8.2 Trademarks
    3. 8.3 Electrostatic Discharge Caution
    4. 8.4 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.3.1 Driving Capacitive Loads

The LM7332 is specifically designed to drive unlimited capacitive loads without oscillations.

LM7332 Phase Margin vs Capacitive Load Figure 6-1 Phase Margin vs Capacitive Load

In addition, the output current handling capability of the device allows for good slewing characteristics even with large capacitive loads. The combination of these features is an excellent choice for applications such as TFT flat panel buffers, A/D converter input amplifiers, and power transistor driver.

However, as in most operational amplifiers, addition of a series isolation resistor between the operational amplifier and the capacitive load improves the settling and overshoot performance.

To keep an acceptable phase margin, unlimited capacitive load drive devices lower the gain bandwidth product under larger capacitive loads. The LM7332 is specified to have a gain bandwidth product of 24MHz without significant capacitive load, but this value begins to decrease at the point where a traditional amplifier begins to become unstable. This tradeoff is what extends the output drive capability. LM7332 is designed with a wide gain bandwidth product to make sure there is headroom for many general-purpose applications with higher capacitive loads.