SCDS487A October   2025  – December 2025 TMUX4819 , TMUX4821

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Absolute Maximum Ratings
  7. 6 ESD Ratings
  8. 7 Thermal Information
  9. 8 Recommended Operating Conditions
  10. 9 Source or Drain Continuous Current
  11. 10Source or Drain RMS Current
  12. 11Electrical Characteristics 
  13. 12Switching Characteristics 
  14. 13Typical Characteristics
  15. 14Parameter Measurement Information
    1. 14.1  On-Resistance
    2. 14.2  On-Leakage Current
    3. 14.3  Off-Leakage Current
    4. 14.4  Power-Off Leakage Current
    5. 14.5  Propagation Delay
    6. 14.6  tON (VDD) and tOFF (VDD) Time
    7. 14.7  Transition Time
    8. 14.8  Break-Before-Make
    9. 14.9  THD + Noise
    10. 14.10 Power Supply Rejection Ratio (PSRR)
    11. 14.11 Charge Injection
    12. 14.12 Bandwidth
    13. 14.13 Off Isolation
    14. 14.14 Crosstalk
  16. 15Detailed Description
    1. 15.1 Functional Block Diagram
    2. 15.2 Device Functional Modes
    3. 15.3 Feature Description
      1. 15.3.1 Beyond the Supply
      2. 15.3.2 Bidirectional Operation
      3. 15.3.3 Power-Off Protection
      4. 15.3.4 1.2V and 1.8V Logic Compatible Inputs
      5. 15.3.5 Integrated Pull-Down Resistor on Logic Pins
      6. 15.3.6 Fail-Safe Logic
  17. 16Application and Implementation
    1. 16.1 Application Information
    2. 16.2 Typical Applications
      1. 16.2.1 Audio Amplifier Switching
        1. 16.2.1.1 Design Requirements
        2. 16.2.1.2 Detailed Design Procedure
        3. 16.2.1.3 Application Curves
      2. 16.2.2 Smart Drug Delivery Flow Meters
        1. 16.2.2.1 Design Requirements
        2. 16.2.2.2 Detailed Design Procedure
        3. 16.2.2.3 Application Curve
    3. 16.3 Power Supply Recommendations
    4. 16.4 Layout
      1. 16.4.1 Layout Guidelines
      2. 16.4.2 Layout Example
  18. 17Device and Documentation Support
    1. 17.1 Documentation Support
      1. 17.1.1 Related Documentation
    2. 17.2 Receiving Notification of Documentation Updates
    3. 17.3 Support Resources
    4. 17.4 Trademarks
    5. 17.5 Electrostatic Discharge Caution
    6. 17.6 Glossary
  19. 18Revision History
  20. 19Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

14.10 Power Supply Rejection Ratio (PSRR)

PSRR measures the ability of a device to prevent noise and spurious signals that appear on the supply voltage pin from coupling to the output of the switch. The DC voltage on the device supply is modulated by a sine wave of 100mVPP. The ratio of the amplitude of signal on the output to the amplitude of the modulated signal is the AC PSRR.

TMUX4821 TMUX4819 AC PSRR Measurement SetupFigure 14-10 AC PSRR Measurement Setup