SCDS488 December   2025 TMUX2819 , TMUX2821

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 Thermal Information
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Source or Drain Continuous Current
    6. 5.6 Source or Drain RMS Current
    7. 5.7 Electrical Characteristics
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1  On-Resistance
    2. 6.2  On-Leakage Current
    3. 6.3  Off-Leakage Current
    4. 6.4  Power-Off Leakage Current
    5. 6.5  Propagation Delay
    6. 6.6  tON (VDD) and tOFF (VDD) Time
    7. 6.7  Transition Time
    8. 6.8  Break-Before-Make
    9. 6.9  THD + Noise
    10. 6.10 Power Supply Rejection Ratio (PSRR)
    11. 6.11 Charge Injection
    12. 6.12 Bandwidth
    13. 6.13 Off Isolation
    14. 6.14 Crosstalk
  8. 7 Detailed Description
    1. 7.1 Functional Block Diagram
    2. 7.2 Device Functional Modes
    3. 7.3 Feature Description
      1. 7.3.1 Beyond the Supply
      2. 7.3.2 Bidirectional Operation
      3. 7.3.3 Power-Off Protection
      4. 7.3.4 1.2V and 1.8V Logic Compatible Inputs
      5. 7.3.5 Integrated Pull-Down Resistor on Logic Pins
      6. 7.3.6 Fail-Safe Logic
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Audio Input or Output Switching
    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

Package Options

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

6.13 Off Isolation

Off isolation is defined as the ratio of the signal at the drain pin (D) of the device when a signal is applied to the source pin (Sx) of an off-channel. Figure 6-13 shows the setup used to measure, and the equation used to calculate off isolation.

TMUX2821 TMUX2819 Off Isolation Measurement SetupFigure 6-13 Off Isolation Measurement Setup
Equation 1. Off Isolation = 20 × Log VOUTVS