SNOSB30Q October   2008  – March 2026 LMH6554

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Pin Configuration and Functions
    1.     Pin Functions
  6. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics: +5 V
    6. 5.6 Typical Performance Characteristics VS = ±2.5 V
  7. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
  8. 7Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Single-Ended Input to Differential Output Operation
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Enable / Disable Operation
          2. 7.2.1.2.2 Single-Ended Input to Differential Output Operation
          3. 7.2.1.2.3 Driving Capacitive Loads
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Fully Differential Operation
      3. 7.2.3 Single Supply Operation
      4. 7.2.4 Driving Analog-to-Digital Converters
      5. 7.2.5 Output Noise Performance and Measurement
      6. 7.2.6 Balanced Cable Driver
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Power Supply Bypassing
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Power Dissipation
      4. 7.4.4 ESD Protection
  9. 8Device and Documentation Support
    1. 8.1 Device Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Trademarks
  10. 9Revision History
  11.   Mechanical, Packaging, and Orderable Information

7.3.1 Power Supply Bypassing

The LMH6554 requires supply bypassing capacitors as shown in Figure 7-12 and Figure 7-13. The 0.01-μF and 0.1-μF capacitors should be lead-less SMT ceramic capacitors and should be no more than 3 mm from the supply pins. These capacitors should be star routed with a dedicated ground return plane or trace for best harmonic distortion performance. Thin traces or small vias will reduce the effectiveness of bypass capacitors. Also shown in both figures is a capacitor from the VCM and VEN pins to ground. These inputs are high impedance and can provide a coupling path into the amplifier for external noise sources, possibly resulting in loss of dynamic range, degraded CMRR, degraded balance and higher distortion.

LMH6554 Split Supply Bypassing CapacitorsFigure 7-12 Split Supply Bypassing Capacitors
LMH6554 Single Supply Bypassing CapacitorsFigure 7-13 Single Supply Bypassing Capacitors