SCDS420E September   2020  – July 2024 TMUX6219

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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  ±15 V Dual Supply: Electrical Characteristics 
    7. 5.7  ±15 V Dual Supply: Switching Characteristics 
    8. 5.8  36 V Single Supply: Electrical Characteristics 
    9. 5.9  36 V Single Supply: Switching Characteristics 
    10. 5.10 12 V Single Supply: Electrical Characteristics 
    11. 5.11 12 V Single Supply: Switching Characteristics 
    12. 5.12 +5 V / -8 V Dual Supply: Electrical Characteristics 
    13. 5.13 +5 V / -8 V Dual Supply: Switching Characteristics 
    14. 5.14 ±5 V Dual Supply: Electrical Characteristics 
    15. 5.15 ±5 V Dual Supply: Switching Characteristics 
    16. 5.16 Typical Characteristics
  7. Parameter Measurement Information
    1. 6.1  On-Resistance
    2. 6.2  Off-Leakage Current
    3. 6.3  On-Leakage Current
    4. 6.4  Transition Time
    5. 6.5  tON(EN) and tOFF(EN)
    6. 6.6  Break-Before-Make
    7. 6.7  tON (VDD) Time
    8. 6.8  Propagation Delay
    9. 6.9  Charge Injection
    10. 6.10 Off Isolation
    11. 6.11 Crosstalk
    12. 6.12 Bandwidth
    13. 6.13 THD + Noise
    14. 6.14 Power Supply Rejection Ratio (PSRR)
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bidirectional Operation
      2. 7.3.2 Rail to Rail Operation
      3. 7.3.3 1.8V Logic Compatible Inputs
      4. 7.3.4 Fail-Safe Logic
      5. 7.3.5 Latch-Up Immune
      6. 7.3.6 Ultra-Low Charge Injection
    4. 7.4 Device Functional Modes
    5. 7.5 Truth Tables
  9. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Power Amplifier Gate Driver
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Curve
  10. Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Detailed Design Procedure

The application shown in Figure 8-1 demonstrates how to toggle between the DAC output and low signal voltage for control of a GaN power amplifier using a single control input. The DAC output is utilized to bias the gate of the power amplifier and can be disconnected from the circuit using the select pin of the switch. The TMUX6219 can support 1.8V logic signals on the control input, allowing the device to interface with low logic controls of an FPGA or MCU. The TMUX6219 can operate without any external components except for the supply decoupling capacitors. The select pin has an internal pull-down resistor to prevent floating input logic. All inputs to the switch must fall within the recommended operating conditions of the TMUX6219 including signal range and continuous current. For this design with a positive supply of 8V on VDD and negative supply of −12V on VSS, the signal range can be 8V to −12V. The maximum continuous current (IDC) can be up to 330mA as shown in the Recommended Operating Conditions table for wide-range current measurement.