ZHCS793C March   2012  – January 2021 INA282-Q1 , INA283-Q1 , INA284-Q1 , INA285-Q1 , INA286-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Selecting RS
      2. 7.3.2 Effective Bandwidth
      3. 7.3.3 Transient Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Reference Pin Connection Options
        1. 7.4.1.1 Unidirectional Operation
          1. 7.4.1.1.1 Ground Referenced Output
          2. 7.4.1.1.2 V+ Referenced Output
        2. 7.4.1.2 Bidirectional Operation
          1. 7.4.1.2.1 External Reference Output
          2. 7.4.1.2.2 Splitting the Supply
          3. 7.4.1.2.3 Splitting an External Reference
      2. 7.4.2 Shutdown
      3. 7.4.3 Extended Negative Common-Mode Range
      4. 7.4.4 Calculating Total Error
        1. 7.4.4.1 Example 1 INA282-Q1
        2. 7.4.4.2 Example 2 INA286-Q1
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Connections
    2. 8.2 Typical Applications
      1. 8.2.1 Current Summing
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedures
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Current Differencing
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 接收文档更新通知
    2. 11.2 支持资源
    3. 11.3 Trademarks
    4. 11.4 静电放电警告
  12. 12术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.4.3 Extended Negative Common-Mode Range

Using a negative power supply can extend the common-mode range 14 V more negative than the supply used. For instance, a –10 V supply allows up to –24-V negative common-mode. Remember to keep the total voltage between the GND pin and V+ pin to less than 18 V. The positive common-mode decreases by the same amount.

The reference input simplifies this type of operation because the output quiescent bias point is always based on the reference connections. Figure 7-7 shows a circuit configuration for common-mode ranges from –24 V to 70 V.

GUID-2323BD3F-5FD5-4D99-905E-428692E105E1-low.gif
A. Connect the REF pins as desired; however, they cannot exceed 9 V greater than the GND pin voltage.
Figure 7-7 Circuit Configuration for Common-Mode Ranges from –24 V to 70 V