SCDS399 August   2019 TMUX1247

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Application Example
      2.      TMUX1247 Block Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics (VDD = 5 V ±10 %), GND = 0 V unless otherwise specified.
    6. 6.6 Electrical Characteristics (VDD = 3.3 V ±10 %), GND = 0 V unless otherwise specified.
    7. 6.7 Electrical Characteristics (VDD = 1.8 V ±10 %), GND = 0 V unless otherwise specified.
    8. 6.8 Electrical Characteristics (VDD = 1.2 V ±10 %), GND = 0 V unless otherwise specified.
    9. 6.9 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 Break-Before-Make
    6. 7.6 Charge Injection
    7. 7.7 Off Isolation
    8. 7.8 Crosstalk
    9. 7.9 Bandwidth
  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 Fail-Safe Logic
    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 Application
      1. 9.2.1 Input Control for Power Amplifier
        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 Switchable Operational Amplifier Gain Setting
        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
      1. 11.1.1 Layout Information
    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 Community 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 Input Control for Power Amplifier

One application of the TMUX1247 is for input control of a power amplifier. 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 GND. Figure 17 shows the TMUX1247 configured for control of the power amplifier.

TMUX1247 1247_Design_PAswitching.gifFigure 17. Input Control of Power Amplifier