JAJSJ74B August   2021  – August 2023 JFE2140

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Parameter Measurement Information
    1. 7.1 AC Measurement Configurations
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Precision Matching
      2. 8.3.2 Ultra-Low Noise
      3. 8.3.3 Low Gate Current
      4. 8.3.4 Input Protection
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Input Protection Diodes
      2. 9.1.2 Cascode Configuration
      3. 9.1.3 Common-Source Amplifier
      4. 9.1.4 Composite Amplifiers
    2. 9.2 Typical Applications
      1. 9.2.1 Low-Noise, Low-Power, High-Input-Impedance Composite Amplifier
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Differential Front-End Design
        1. 9.2.2.1 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 PSpice® for TI
        2. 10.1.1.2 TINA-TI™シミュレーション・ソフトウェア (無償ダウンロード)
        3. 10.1.1.3 TI のリファレンス・デザイン
        4. 10.1.1.4 フィルタ設計ツール
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 ドキュメントの更新通知を受け取る方法
    4. 10.4 サポート・リソース
    5. 10.5 Trademarks
    6. 10.6 静電気放電に関する注意事項
    7. 10.7 用語集
  12. 11Mechanical, 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

8.3.1 Precision Matching

The JFE2140 features matched-pair, n-type JFET transistors fabricated on a high-precision analog process. Precision matching between opposite JFETs is required in differential-pair configurations, where any mismatch between input devices results in gain and common-mode rejection degradation. Precision matching also minimizes offset voltages that produce excessive error voltages in high-gain, dc-coupled composite amplifiers. Matching distribution for a production lot of units can be seen in Figure 6-10.