ZHCSJE1C February   2019  – December 2023 TMUX1111 , TMUX1112 , TMUX1113

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. 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 = 5V ±10 %)
    6. 6.6 Electrical Characteristics (VDD = 3.3V ±10 %)
    7. 6.7 Electrical Characteristics (VDD = 1.8V ±10 %)
    8. 6.8 Electrical Characteristics (VDD = 1.2V ±10 %)
    9. 6.9 Typical Characteristics
  8. 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 Channel-to-Channel Crosstalk
    9. 7.9 Bandwidth
  9. 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 1.8V Logic compatible inputs
      4. 8.3.4 Fail-safe logic
      5. 8.3.5 Ultra-Low Leakage Current
      6. 8.3.6 Ultra-Low Charge Injection
    4. 8.4 Device Functional Modes
    5. 8.5 Truth Tables
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application - Sample-and-Hold Circuit
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Detailed Design Procedure
      3. 9.2.3 Application Curve
    3. 9.3 Typical Application - Switched Gain Amplifier
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 Application Curve
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • PW|16
  • RSV|16
散热焊盘机械数据 (封装 | 引脚)
订购信息

Detailed Design Procedure

The TMUX111x devices can be operated without any external components except for the supply decoupling capacitors. All inputs signals passing through the switch must fall within the recommend operating conditions of the TMUX111x including signal range and continuous current. For this design example, with a supply of 3.3V, the signals can range from 0V to 3.3V when the device is powered. The max continuous current can be 30mA.

Photodiodes commonly have a current output that ranges from a few hundred picoamps to tens of microamps based on the amount of light being absorbed. The TMUX111x have a typical On-leakage current of less than 10pA which would lead to an accuracy well within 1% of a full scale 10µA signal. The low ON and OFF capacitance of the TMUX111x improves system stability by minimizing the total capacitance on the output of the amplifier. Lower capacitance leads to less overshoot and ringing in the system which can cause the amplifier circuit to go unstable if the phase margin is not at least 45°. Refer to Improve Stability Issues with Low CON Multiplexers for more information on calculating the phase margin vs. percent overshoot.