SBOS998E June   2021  – March 2026 BUF802

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 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics Wide Bandwidth Mode
    6. 5.6 Electrical Characteristics Low Quiescent Current Mode
    7. 5.7 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input and Output Overvoltage Clamp
      2. 7.3.2 Adjustable Quiescent Current
      3. 7.3.3 ESD Structure
    4. 7.4 Device Functional Modes
      1. 7.4.1 Buffer Mode (BF Mode)
        1. 7.4.1.1 BUF802 Used in BF Mode for Clock Buffer
      2. 7.4.2 Composite Loop Mode (CL Mode)
        1. 7.4.2.1 Alternative Approach for Realizing Composite Loop
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Oscilloscope Front-End Amplifier Design
        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 Transforming a Wide-Bandwidth, 50Ω Input Signal Chain to High-Input Impedance
        1. 8.2.2.1 Detailed Design Procedure
        2. 8.2.2.2 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      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

10 Revision History

Changes from Revision D (July 2025) to Revision E (March 2026)

  • Added Low phase noise to Features Go
  • Added Clock drivers and clock buffers to Applications Go
  • Updated TA = 25°C output swing minimum value from: VS+ − 1.9V to: VS− + 3.4VGo
  • Updated −40°C to +85°C output swing minimum value from: VS+ − 2.0V to: VS− + 3.4VGo
  • Updated TA = 25°C output swing maximum value from: VS− + 3.4V to: VS+ − 1.9VGo
  • Updated −40°C to +85°C output swing maximum value from: VS− + 3.4V to: VS+ − 2.0VGo
  • Updated VOS input offset voltage typical value from: −600mV to: 600mVGo
  • Updated VOS input offset voltage VOUT = VIN maximum value from: −800mV to: 800mVGo
  • Updated VOS input offset voltage TA = −40°C to +85°C maximum value from: −900mV to: 900mVGo
  • Added Phase noise plot in Typical Characteristics Go
  • Added BUF802 Used in BF Mode for Clock Buffer sectionGo
  • Added Alternative Approach for Realizing Composite Loop sectionGo

Changes from Revision C (March 2022) to Revision D (July 2025)

  • Deleted maximum dVS/dT for supply turn-on and turn-off from Absolute Maximum Ratings Go
  • Changed current noise unit from pA/√Hz to fA/√Hz in both Electrical Characteristics Go
  • Moved VCLH and VCLL to symbol column and expanded text for clarityGo
  • Deleted across temperature data from GAUX Go
  • Changed "to" to "/" in GAUX parameter name for clarityGo
  • Added new row to GAUX for low frequency regionGo
  • Added crossover text to GAUX Go
  • Added test condition to In_Aux input voltage for clarityGo
  • Added GAUX BW symbol to VOUT / In_Aux bandwidth Go
  • Updated GAUX BW to a ratio for clarityGo
  • Moved Operating voltage to Recommended Operating Conditions Go
  • Updated voltage noise and current noise density vs frequency plots in Typical Characteristics Go
  • Changed unit for current noise density vs frequency plot in Typical Characteristics Go
  • Updated Detailed Design Procedure to reflect pole frequencies more accurately, to use G value from Electrical Characteristics: Wide Bandwidth Mode, and to clarify CF valueGo