ZHCSTR6A September   1999  – November 2023 INA146

PRODUCTION DATA  

  1.   1
  2. 1特性
  3. 2应用
  4. 3说明
  5. 4Pin Configuration and Functions
  6. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics VS = ±2.25 V to ±18 V
    6. 5.6 Electrical Characteristics VS = 5 V Single Supply
    7. 5.7 Amplifier A1, A2 Performance
    8. 5.8 Typical Performance Curves
  7. 6Application and Implementation
    1. 6.1 Application Information
      1. 6.1.1 Operating Voltage
      2. 6.1.2 Setting the Gain
      3. 6.1.3 Common-mode Range
      4. 6.1.4 Offset Trim
      5. 6.1.5 Input Impedance
  8. 7Device and Documentation Support
    1. 7.1 第三方产品免责声明
    2. 7.2 Documentation Support
      1. 7.2.1 Related Documentation
    3. 7.3 接收文档更新通知
    4. 7.4 支持资源
    5. 7.5 Trademarks
    6. 7.6 静电放电警告
    7. 7.7 术语表
  9. 8Revision History
  10. 9Mechanical, 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)
  • D|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.1.4 Offset Trim

The INA146 is laser-trimmed for low offset voltage and drift. Most applications require no external offset adjustment. Figure 6-2 shows an optional circuit for trimming the offset voltage. A voltage applied to the Ref terminal is summed with the output signal. This feature can be used to null offset voltage. To maintain good common-mode rejection, the source impedance of a signal applied to the Ref terminal must be less than 10 Ω and a resistor added to the positive input terminal must be 10 times that, or 100 Ω. Alternatively, the trim voltage can be buffered with an operational amplifier such as the OPA277.