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

7.1.4 Driving Capacitive Loads

Amplifiers driving capacitive loads can oscillate or have ringing at the output. To eliminate oscillation or reduce ringing, place an isolation resistor as shown in Figure 7-5. The combination of the isolation resistor and the load capacitor forms a pole to increase stability by adding more phase margin to the overall system. The desired performance depends on the value of the isolation resistor; the bigger the isolation resistor, the more damped the pulse response becomes. For the LM6171, a 50‑Ω isolation resistor is recommended for initial evaluation. Figure 7-6 shows the LM6171 driving a 200‑pF load with the 50‑Ω isolation resistor.

GUID-6CE44AA6-778D-488A-9512-6C9D2E9E0723-low.png Figure 7-5 Isolation Resistor Used to Drive Capacitive Load
GUID-7980C21C-EFCC-4C56-A0E6-C4DD1FBD2BAC-low.png Figure 7-6 The LM6171 Driving a 200‑pF Load With a 50‑Ω Isolation Resistor