ZHCSJE3C february   2019  – august 2021 INA191 , INA2191

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  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
    6. 6.6 Typical Characteristics
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Precision Current Measurement
      2. 7.3.2 Low Input Bias Current
      3. 7.3.3 Low Quiescent Current With Output Enable
      4. 7.3.4 Bidirectional Current Monitoring (INA2191 Only)
      5. 7.3.5 High-Side and Low-Side Current Sensing
      6. 7.3.6 High Common-Mode Rejection
      7. 7.3.7 Rail-to-Rail Output Swing
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Unidirectional Mode
      3. 7.4.3 Bidirectional Mode (INA2191 Only)
      4. 7.4.4 Input Differential Overload
      5. 7.4.5 Shutdown
  9. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Connections
      2. 8.1.2 RSENSE and Device Gain Selection
      3. 8.1.3 Signal Conditioning
      4. 8.1.4 Common-Mode Voltage Transients
    2. 8.2 Typical Application
      1. 8.2.1 Microamp Current Measurement
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
  10. Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  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)
  • YFD|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

特性

  • 低功耗:
    • 电源电压 VS:1.7V 至 5.5V
    • 关断电流:100nA(INA191 的最大值)
    • 静态电流:43μA (INA191 25°C 时)
  • 低输入偏置电流:100pA(典型值)
    (支持微安级电流测量)
  • 双向电流测量 (INA2191)
  • 精度:
    • ±0.25% 的最大增益误差(A2 至 A5 器件)
    • 7ppm/°C 的增益漂移(最大值)
    • ±12μV(最大值)的失调电压
    • 0.13µV/°C 的温漂(最大值)
  • 宽共模电压:-0.2 V 至 +40 V
  • 增益选项:
    • INAx191A1:25 V/V
    • INAx191A2:50V/V
    • INAx191A3:100V/V
    • INAx191A4:200V/V
    • INAx191A5:500V/V
  • 封装:
    • INA191:0.895mm2 DSBGA
    • INA2191:1.79mm2 DSBGA