JAJSJ37F april   2020  – march 2023 OPA205 , OPA2205 , OPA4205

PRODMIX  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and 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: OPA205
    5. 6.5 Thermal Information: OPA2205
    6. 6.6 Thermal Information: OPA4205
    7. 6.7 Electrical Characteristics: VS = ±5 V
    8. 6.8 Electrical Characteristics: VS = ±15 V
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Typical Specifications and Distributions
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input Offset Trimming
      2. 8.3.2 Lower Input Bias With Super-Beta Inputs
      3. 8.3.3 Overload Power Limiter
      4. 8.3.4 EMI Rejection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 High-Precision Signal-Chain Input Buffer
        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 Discrete, Two-Op-Amp Instrumentation Amplifier
      3. 9.2.3 Second-Order Low-Pass Filter
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
        1. 10.1.1.1 PSpice® for TI
    2. 10.2 ドキュメントのサポート
      1. 10.2.1 関連資料
    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
  11. 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

9.2.3 Second-Order Low-Pass Filter

The OPAx205 has a very-low broadband voltage noise of only 7.2 nV/√Hz and flicker noise of 0.2 µVPP given the low power consumption of only 220 µA, making this device an excellent choice for low-power filter applications. Figure 9-4 is an example of one channel of the OPAx205 configured as a second-order low-pass filter with a cutoff frequency of 50 kHz.

GUID-20210518-CA0I-JNWF-VK9M-NH5FWFQCFRXN-low.svg Figure 9-4 Second-Order Low-Pass Filter