ZHCSJE3C February   2019  – August 2021 INA191 , INA2191

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  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
  7. 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
  8. 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
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 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 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 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

Typical Characteristics

at TA = 25 °C, VS = 1.8 V, VIN+ = 12 V, VENABLE = VS, VREF = GND and all gain options (unless otherwise noted)

GUID-F481640B-BED2-4F4B-9A54-0B5F5915842B-low.gifFigure 6-1 Input Offset Voltage Production Distribution
GUID-0BB785E1-0BA0-4942-A0EC-A9A2CAA883DA-low.gifFigure 6-3 Common-Mode Rejection Production Distribution
GUID-462569F5-461B-4D68-9A3E-8EE9623C9A66-low.gif
A1 devices
Figure 6-5 Gain Error Production Distribution (INA191)
GUID-9ED31358-D948-4796-8927-B3DF0FE55139-low.gif
A2, A3, A4, A5 devices
Figure 6-7 Gain Error Production Distribution
GUID-7652D53A-93BC-4982-97A4-AB5CF04DB8C4-low.gif
VS = 5 V
Figure 6-9 Gain vs. Frequency
GUID-476A2583-EC0D-45E3-A101-AF06411A63CE-low.gifFigure 6-11 Common-Mode Rejection Ratio vs. Frequency
GUID-3502823F-A438-4E73-8CA3-6C8D91888B3D-low.gif
VS = 5.0 V
Figure 6-13 Output Voltage Swing vs. Output Current
GUID-BBBE64E0-13D8-496E-9BB7-2023A61D64BD-low.gif
VENABLE = 0 V, VSENSE = 0 V
Figure 6-15 Input Bias Current vs. Common-Mode Voltage (Shutdown)
GUID-BE57E953-80E4-43FB-853A-76A9BF814513-low.gif
VENABLE = VS
Figure 6-17 Quiescent Current vs. Temperature (INA191)
GUID-20210701-CA0I-KJVM-G9XH-3GSN730FXX9B-low.gif
VENABLE1 = VENABLE2 = VS

, VREF = VS /2

Figure 6-19 Quiescent Current vs. Temperature (INA2191 )
GUID-20210701-CA0I-FF04-PQ1S-HPZPRJXJVZST-low.gif
VENABLE1 = VENABLE2 = 0 V, VREF = VS /2
Figure 6-21 Quiescent Current vs. Temperature (INA2191 Disabled)
GUID-20210701-CA0I-T9HM-NNDP-GDBVV5S4Z3JH-low.gif
VREF = VS /2
Figure 6-23 Quiescent Current vs. Common-Mode Voltage (INA2191)
GUID-74ED2DF9-E1E8-4E52-BCC8-C703EF294942-low.gifFigure 6-25 0.1-Hz to 10-Hz Input-Referred Voltage Noise
GUID-20210701-CA0I-0V48-6RPH-MHTWWP2JKPF7-low.gifFigure 6-27 Common-Mode Voltage Transient Response
GUID-75E1D6C3-9194-4C17-AF8D-BBE1F9E69E93-low.gif
VS = 5.0 V
Figure 6-29 Noninverting Differential Input Overload Recovery
GUID-9845730D-963F-4EDA-B8D8-2D344297B218-low.gif
VS = 5.0 V, A3 device
Figure 6-31 Brownout Recovery
GUID-5691C78C-1113-4730-994E-520E7BD2E4D6-low.gif
VS = 5.0 V, A1 device
Figure 6-33 IB+ and IB– vs. Differential Input Voltage (INA191)
GUID-20210701-CA0I-4GV6-TQWW-WNRLD5CXX1WN-low.gif
VS = 5.0 V, VREF = VS /2, A1 device
Figure 6-35 IB+ and IB– vs. Differential Input Voltage (INA2191)
GUID-D8067F2C-2286-417A-B56F-F35CE3A90D4E-low.gif
VS = 5.0 V, VENABLE = 0 V, A1, A2, A3 devices
Figure 6-37 Output Leakage vs. Output Voltage
GUID-2D1E1570-9B1C-46DB-9B2B-FA9FA186433A-low.gif
VS = 5.0 V, VENABLE = 0 V, VREF = 2.5 V, A1, A2, A3 devices
Figure 6-39 Output Leakage vs. Output Voltage (INA2191)
GUID-20210701-CA0I-XQRH-DJK9-4RZDQF2QNNXM-low.gif
VS = 5.0 V, VCM = 0 V
Figure 6-41 Output Impedance vs. Frequency
GUID-4097DD1F-494D-4896-A4BB-CF8A9F34110F-low.gifFigure 6-2 Offset Voltage vs. Temperature
GUID-366609A8-781C-4D10-9C53-0DD0E4DD4BAF-low.gifFigure 6-4 Common-Mode Rejection Ratio vs. Temperature
GUID-20210701-CA0I-MFCT-CGCC-7DPHMSCNFRRQ-low.gif

A1 Devices

Figure 6-6 Gain Error Production Distribution (INA2191)
GUID-3938DFB4-18CB-4874-9943-001447DB71E6-low.gifFigure 6-8 Gain Error vs. Temperature
GUID-E3941E8B-9104-458C-865F-8B056EAF6617-low.gif
VS = 5 V
Figure 6-10 Power-Supply Rejection Ratio vs. Frequency
GUID-7D0499A9-0FCB-4DA8-972B-EB1D1D50A849-low.gif
VS = 1.8 V
Figure 6-12 Output Voltage Swing vs. Output Current
GUID-F13D150B-30C3-4C1D-84F6-29E069BE4C18-low.gif
VS = 5.0 V, VSENSE = 0 V
Figure 6-14 Input Bias Current vs. Common-Mode Voltage
GUID-8E478B24-BAF1-4580-98DC-0EAC77D69CC5-low.gif
VSENSE = 0 V
Figure 6-16 Input Bias Current vs. Temperature
GUID-20210701-CA0I-7KWL-BDPK-QRTBX9KNLFSP-low.gif
Single channel enabled, VREF = VS /2
Figure 6-18 Quiescent Current vs. Temperature (INA2191 )
GUID-98F700E9-ED9B-4F10-858C-DA928D2FB755-low.gif
VENABLE = 0 V
Figure 6-20 Quiescent Current vs. Temperature (INA191 Disabled)
GUID-A3B7EF97-B558-4110-BE42-66B981E1F0D2-low.gifFigure 6-22 Quiescent Current vs. Common-Mode Voltage (INA191)
GUID-20210701-CA0I-ZQ1V-1VMK-ZSZP91L90VVS-low.gifFigure 6-24 Input-Referred Voltage Noise vs. Frequency
GUID-3CB0756F-B61E-4FE9-A628-2990830146C0-low.gif
VS = 5.0 V, 10-mVPP input step
Figure 6-26 Step Response
GUID-5CC9A571-C990-4CF5-A3BD-481A7138F483-low.gifFigure 6-28 Inverting Differential Input Overload Recovery
GUID-2289FF25-E4FE-4EB9-ADF2-E75C27D391F0-low.gif
VS = 5.0 V, A2 device
Figure 6-30 Start-Up Response
GUID-A20885A8-7C42-49F6-937F-A1F50A338F4E-low.gif
VS = 5.0 V, A3 device
Figure 6-32 Enable and Disable Response
GUID-F28C5E9E-B9D0-4B46-8BCA-9994DE3804E1-low.gif
VS = 5.0 V, A2, A3, A4, A5 devices
Figure 6-34 IB+ and IB– vs. Differential Input Voltage (INA191)


VS = 5.0 V, VREF = VS /2, A2, A3, A4, A5 devices
Figure 6-36 IB+ and IB– vs. Differential Input Voltage (INA2191)
GUID-726851B5-E9AB-42C8-AF59-2CB8D6AD59FC-low.gif
VS = 5.0 V, VENABLE = 0 V, A4, A5 devices
Figure 6-38 Output Leakage vs. Output Voltage
GUID-2A2CB5CB-0E9E-4A47-9643-28A4D4733590-low.gif
VS = 5.0 V, VENABLE = 0 V, VREF = 2.5 V, A4, A5 devices
Figure 6-40 Output Leakage vs. Output Voltage (INA2191)
GUID-20210701-CA0I-NBRQ-8K4R-PFQJDWRP8CWX-low.gif
VS = 5.0 V, VCM = 0 V, VREF = VS /2
Figure 6-42 Channel Separation vs. Frequency (INA2191)