SCDS407E November   2020  – August 2022 TMUX7219

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Thermal Information
    4. 6.4  Recommended Operating Conditions
    5. 6.5  Source or Drain Continuous Current
    6. 6.6  ±15 V Dual Supply: Electrical Characteristics 
    7. 6.7  ±15 V Dual Supply: Switching Characteristics 
    8. 6.8  ±20 V Dual Supply: Electrical Characteristics
    9. 6.9  ±20 V Dual Supply: Switching Characteristics
    10. 6.10 44 V Single Supply: Electrical Characteristics 
    11. 6.11 44 V Single Supply: Switching Characteristics 
    12. 6.12 12 V Single Supply: Electrical Characteristics 
    13. 6.13 12 V Single Supply: Switching Characteristics 
    14. 6.14 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1  On-Resistance
    2. 7.2  Off-Leakage Current
    3. 7.3  On-Leakage Current
    4. 7.4  Transition Time
    5. 7.5  tON(EN) and tOFF(EN)
    6. 7.6  Break-Before-Make
    7. 7.7  tON (VDD) Time
    8. 7.8  Propagation Delay
    9. 7.9  Charge Injection
    10. 7.10 Off Isolation
    11. 7.11 Crosstalk
    12. 7.12 Bandwidth
    13. 7.13 THD + Noise
    14. 7.14 Power Supply Rejection Ratio (PSRR)
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Bidirectional Operation
      2. 8.3.2 Rail-to-Rail Operation
      3. 8.3.3 1.8 V Logic Compatible Inputs
      4. 8.3.4 Integrated Pull-Up and Pull-Down Resistor on Logic Pins
      5. 8.3.5 Fail-Safe Logic
      6. 8.3.6 Latch-Up Immune
      7. 8.3.7 Ultra-Low Charge Injection
    4. 8.4 Device Functional Modes
    5. 8.5 Truth Tables
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Power Amplifier Gate Driver
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Ultrasonic Sensing Gas Meter
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.1 Power Amplifier Gate Driver

One application of the TMUX7219 is for input control of a power amplifier gate driver. Utilizing a switch allows a system to control when the DAC is connected to the power amplifier, and can stop biasing the power amplifier by switching the gate to VSS. The wide dual supply range of ±4.5 V to ±22 V allows the switch to work with GaN power amplifiers and the wide single supply range 4.5 V to 44 V works well with LDMOS power amplifiers.

Figure 9-1 shows the TMUX7219 configured for control of the power amplifier gate driver in GaN application.

GUID-20201201-CA0I-DTHW-BB9M-HBPPZW8LBSS0-low.gif Figure 9-1 Power Amplifier Gate Driver