JAJSCS8B December   2016  – November 2018 INA1650 , INA1651

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
    1.     INA165xの簡略化された内部回路図
  3. 3 概要
    1.     CMRRヒストグラム(5746チャネル)
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
    2.     Pin 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 Audio Signal Path
      2. 7.3.2 Supply Divider
      3. 7.3.3 Electrical Overstress
      4. 7.3.4 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Single-Supply Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Common-Mode Range
      2. 8.1.2 Common-Mode Input Impedance
      3. 8.1.3 Start-Up Time in Single-Supply Applications
      4. 8.1.4 Input AC Coupling
      5. 8.1.5 Supply Divider Capacitive Loading
    2. 8.2 Typical Applications
      1. 8.2.1 Line Receiver for Differential Audio Signals in a Split-Supply System
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Differential Line Receiver for Single-Supply Applications
      3. 8.2.3 Floating Single-Ended Input Line Receiver for Ground Loop Noise Reduction
      4. 8.2.4 Floating Single-Ended Input Line Receiver With Differential Outputs
      5. 8.2.5 TRS Audio Interface in Single-Supply Applications
      6. 8.2.6 Differential Line Driver With Single-Ended Input
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 デバイス・サポート
      1. 11.1.1 開発サポート
        1. 11.1.1.1 TINA-TI(無料のダウンロード・ソフトウェア)
        2. 11.1.1.2 TI Precision Designs
    2. 11.2 ドキュメントのサポート
      1. 11.2.1 関連資料
    3. 11.3 関連リンク
    4. 11.4 ドキュメントの更新通知を受け取る方法
    5. 11.5 コミュニティ・リソース
    6. 11.6 商標
    7. 11.7 静電気放電に関する注意事項
    8. 11.8 Glossary
  12. 12メカニカル、パッケージ、および注文情報

パッケージ・オプション

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

8.2.3 Floating Single-Ended Input Line Receiver for Ground Loop Noise Reduction

Ground loops commonly form in audio systems where the equipment is interconnected with coaxial cables, which introduces significant common-mode noise. If the sheath of the coaxial cable is connected to the equipment chassis and safety ground, a ground loop forms, which includes the main electrical wiring and the audio signal path. The INA165x can break these ground loops by floating the sheath of the coaxial cable through resistors (R3 and R4 in Figure 59) so ground noise appears at the inputs of the INA165x as a common-mode signal. Capacitors C8 and C9 provide a high-frequency pathway to ground for radio frequency interference (RFI). A transient voltage suppressor (TVS) connected between the coaxial sheath and the chassis ground is shown in Figure 59. This TVS protects the inputs of the INA165x in the event of an electrostatic discharge to the signal input.

INA1650 INA1651 TA_D003.gifFigure 59. Ground Loop Isolation in Single-Ended Systems