SNOS745D May   1998  – November 2023 LM6171

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: ±15 V
    6. 5.6 Electrical Characteristics: ±5 V
    7. 5.7 Typical Characteristics: LM6171A Only
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Circuit Operation
      2. 6.3.2 Slew Rate
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Compensation for Input Capacitance
      2. 7.1.2 Power Supply Bypassing
      3. 7.1.3 Termination
      4. 7.1.4 Driving Capacitive Loads
      5. 7.1.5 Using Probes
      6. 7.1.6 Components Selection and Feedback Resistor
    2. 7.2 Typical Applications
      1. 7.2.1 Fast Instrumentation Amplifier
      2. 7.2.2 Multivibrator
      3. 7.2.3 Pulse Width Modulator
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Power Dissipation
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Printed Circuit Boards and High-Speed Op Amps
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • P|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.1 Overview

The LM6171 is a high-speed, unity-gain-stable voltage-feedback amplifier. The device consumes only 2.5 mA of supply current while providing a gain-bandwidth product of 100 MHz and a slew rate of 3600 V/μs. The LM6171 has additional features, such as low differential gain and phase, and high output current. The LM6171 is a great choice in high-speed circuits.

The LM6171 is a true voltage-feedback amplifier. Unlike current-feedback amplifiers (CFAs) with a low inverting input impedance and a high noninverting input impedance, both inputs of voltage-feedback amplifiers (VFAs) have high-impedance nodes. The low-impedance inverting input in CFAs couples with a feedback capacitor and causes oscillation. As a result, CFAs cannot be used in traditional op-amp circuits, such as photodiode amplifiers, I-to-V converters, and integrators.