JAJSRZ7A September   1999  – November 2023 INA146

PRODUCTION DATA  

  1.   1
  2. 1特長
  3. 2アプリケーション
  4. 3概要
  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 サード・パーティ製品に関する免責事項
    2. 7.2 Documentation Support
      1. 7.2.1 Related Documentation
    3. 7.3 ドキュメントの更新通知を受け取る方法
    4. 7.4 サポート・リソース
    5. 7.5 Trademarks
    6. 7.6 静電気放電に関する注意事項
    7. 7.7 用語集
  9. 8Revision History
  10. 9Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • D|8
サーマルパッド・メカニカル・データ
発注情報

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.