ZHCSQF8A June   2023  – December 2023 TLV365-Q1

PRODMIX  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Rail-to-Rail Input
      2. 7.3.2 Input and ESD Protection
      3. 7.3.3 Driving Capacitive Loads
      4. 7.3.4 Active Filter
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Overdrive Recovery Performance
      2. 8.1.2 Achieving an Output Level of Zero Volts
    2. 8.2 Typical Applications
      1. 8.2.1 Second-Order Low-Pass Filter
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 ADC Driver and Reference Buffer
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
        2. 9.1.1.2 TINA-TI™ 仿真软件（免费下载）
        3. 9.1.1.3 DIP-Adapter-EVM
        4. 9.1.1.4 DIYAMP-EVM
        5. 9.1.1.5 TI 参考设计
        6. 9.1.1.6 滤波器设计工具
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Revision History
  12. 11Mechanical, 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)
  • DBV|5
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.1.2 Achieving an Output Level of Zero Volts

Certain single-supply applications require the op‑amp output to swing from 0 V to a positive full-scale voltage and have high accuracy. An example is an op amp employed to drive a single-supply ADC having an input range from 0 V to 3.3 V. Rail-to-rail output amplifiers with very light output loading can achieve an output level within few millivolts of 0 V (or V+ at the high end), but not true 0 V. Furthermore, the deviation from 0 V only becomes greater as the required load current increases. This increased deviation is a result of limitations of the CMOS output stage.

When a pulldown resistor is connected from the amplifier output to a negative voltage source, the TLVx365-Q1 can achieve an output level of 0 V, and even a few millivolts below 0 V. Figure 8-3 shows a circuit using this technique.

GUID-B4079E0A-D2B5-44CE-8B30-DC61DF7ABB31-low.gif Figure 8-3 Swing-to-Ground

A pulldown current of approximately 500 μA is required when TLVx365-Q1 is connected as a unity-gain buffer. Pulldown resistor RL is calculated from RL = [(VO − VNEG) / (500 μA)].

Figure 8-33 shows the offset voltage vs output swing.

GUID-20221215-SS0I-VLMD-J9BF-PQJF84DWP9M2-low.svg
VS = ±2.75 V
Figure 8-4 Offset Voltage vs Output Swing