ZHCSJR5 May   2019 TMUX1219

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      应用示例
      2.      方框图
  4. 4 修订历史记录
  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 %)
    6. 6.6 Electrical Characteristics (VDD = 3.3 V ±10 %)
    7. 6.7 Electrical Characteristics (VDD = 1.8 V ±10 %)
    8. 6.8 Electrical Characteristics (VDD = 1.2 V ±10 %)
    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 Functional Block Diagram
    2. 8.2 Feature Description
      1. 8.2.1 Bidirectional Operation
      2. 8.2.2 Rail to Rail Operation
      3. 8.2.3 1.8 V Logic Compatible Inputs
      4. 8.2.4 Fail-Safe Logic
    3. 8.3 Device Functional Modes
    4. 8.4 Truth Tables
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Switchable Operational Amplifier Gain Setting
        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 Input Control for Power Amplifier
        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. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.2.2.2 Detailed Design Procedure

The application shown in Figure 19 demonstrates how to toggle between the DAC output and GND for control of a 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 TMUX1219 can support 1.8-V logic signals on the control input, allowing the device to interface with low logic controls of an FPGA or MCU. The TMUX1219 can be operated without any external components except for the supply decoupling capacitors. The select pin is recommended to have a weak pull-down or pull-up resistor to ensure the input is in a known state. All inputs to the switch must fall within the recommend operating conditions of the TMUX1219 including signal range and continuous current. For this design with a supply of 5 V the signal range can be 0 V to 5 V and the max continuous current can be 30 mA.