SLVSIS7 October   2026 OPA2986

ADVMIX  

  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 for OPA986
    5. 5.5 Thermal Information for OPA2986
    6. 5.6 Thermal Information for OPA4986
    7. 5.7 Electrical Characteristics for VS = 8V to 48V
    8. 5.8 Electrical Characteristics for VS = 4.5V to 8V
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Mux-Friendly Inputs
      2. 6.3.2 Thermal Protection
      3. 6.3.3 Overload Recovery
      4. 6.3.4 Slew Rate
      5. 6.3.5 Full-Power Bandwidth Improved
      6. 6.3.6 e-Trim
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 2nd Order Low Pass Filter
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 High-Side Current Sense
      3. 7.2.3 MDAC Output Gain and Buffer
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  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

7.2.1.1 Design Requirements

Low pass filters are critical circuits in almost every analog signal chain design. Low pass filters isolate desired signal frequency components from high frequency components that are undesirable, such as noise and aliased signals. In some demanding applications, steep roll-off of −40dB/decade or greater are required.

Table 7-1 Design Parameters
PARAMETER VALUE
Power supply voltage ±24V
Response Bessel
-3dB cut-off frequency 100kHz