ZHCSQ83A March   2022  – October 2022 INA851

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Related Products
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Adjustable Gain Setting
        1. 8.3.1.1 Gain Drift
      2. 8.3.2 Offset Voltage
      3. 8.3.3 Input Common-Mode Range
      4. 8.3.4 Input Protection
      5. 8.3.5 Output Clamping
      6. 8.3.6 Low Noise
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Output Common-Mode Pin
      2. 9.1.2 Output-Stage Gain Selection and Noise-Gain Shaping
      3. 9.1.3 Input Bias Current Return Path
      4. 9.1.4 Thermal Effects due to Power Dissipation
    2. 9.2 Typical Applications
      1. 9.2.1 Three-Pin Programmable Logic Controller (PLC)
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 应用曲线
      2. 9.2.2 20-Bit, 1-MSPS ADS8900B Driver Circuit With FDA Noise Filter
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Application Curves
      3. 9.2.3 24-Bit, 200 kSPS, Delta-Sigma ADS127L11 ADC Driver Circuit With FDA Noise Filter
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 PSpice® for TI
        2. 10.1.1.2 TINA-TI™ Simulation Software (Free Download)
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 接收文档更新通知
    4. 10.4 支持资源
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 术语表
  11. 11Mechanical, Packaging, and Orderable Information

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8.3.3 Input Common-Mode Range

The linear input voltage range of the INA851 input circuitry extends within 2.5 V (maximum) of both power supplies, and maintains excellent common-mode rejection throughout this range. The valid input common-mode range is a function of the input common-mode voltage, input differential voltage, gain, and output common-mode voltage.

The common-mode range is best calculated using the INA851 Input-Output Range Design Calculator .

The common-mode range for the most common operating conditions are shown in Figure 8-3 to Figure 8-9.

VS± = ±4 V
Figure 8-3 Input Common-Mode Voltage vs Output Voltage, Low Gains
VS± = ±4 V
Figure 8-5 Input Common-Mode Voltage vs Output Voltage, Unity-Gain
VS± = ±4 V High Gains
Figure 8-7 Input Common-Mode Voltage vs Output Voltage, High Gains
VS± = ±12 V Vclamp+ = 5 V, Vclamp- = GND
Figure 8-9 Input Common-Mode Voltage vs Output Voltage With Output Clamping
VS± = 15 V
Figure 8-4 Input Common-Mode Voltage vs Output Voltage, Low Gains
VS± = ±15 V
Figure 8-6 Input Common-Mode Voltage vs Output Voltage, Unity-Gains
 
Figure 8-8 Input Common-Mode Voltage vs Output Voltage, High Gains