JAJSQ08B december   1995  – may 2023 INA2128

PRODUCTION DATA  

  1.   1
  2. 1特長
  3. 2アプリケーション
  4. 3概要
  5. 4Revision History
  6. 5Pin Configuration and Functions
  7. 6Specifications
    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
  8. 7Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Setting The Gain
      2. 7.2.2 Dynamic Performance
      3. 7.2.3 Noise Performance
      4. 7.2.4 Offset Trimming
      5. 7.2.5 Input Bias Current Return Path
      6. 7.2.6 Input Common-Mode Range
      7. 7.2.7 Low-Voltage Operation
      8. 7.2.8 Input Protection
      9. 7.2.9 Channel Crosstalk
  9. 8Device and Documentation Support
    1. 8.1 ドキュメントの更新通知を受け取る方法
    2. 8.2 サポート・リソース
    3. 8.3 Trademarks
    4. 8.4 静電気放電に関する注意事項
    5. 8.5 用語集
  10. 9Mechanical, Packaging, and Orderable Information

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

7.2.9 Channel Crosstalk

The two channels of the INA2128 are completely independent, including all bias circuitry. At dc and low frequency, there is virtually no signal coupling between channels. Crosstalk increases with frequency and depends on circuit gain, source impedance, and signal characteristics.

As source impedance increases, careful circuit layout helps achieve lowest channel crosstalk. Most crossstalk is produced by capacitive coupling of signals from one channel to the input section of the other channel. To minimize coupling, separate the input traces as far as practical from any signals associated with the opposite channel. A grounded guard trace surrounding the inputs helps reduce stray coupling between channels. Run the differential inputs of each channel parallel to each other or directly adjacent on top and bottom side of a circuit board. Stray coupling then tends to produce a common-mode signal which is rejected by the IA input.

GUID-20211027-SS0I-MSJJ-HMSR-MFRHN9JHJJW4-low.png Figure 7-5 Sum of Differences Amplifier
GUID-20211027-SS0I-PXWC-VCPS-GTSHWW350SRS-low.png Figure 7-6 ECG Amplifier With Right-Leg Drive