JAJSMS6D May   2022  – December 2023 OPA2863A , OPA863A

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Device Comparison Table
  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: OPA863A
    5. 6.5  Thermal Information: OPA2863A
    6. 6.6  Electrical Characteristics: VS = ±5 V
    7. 6.7  Electrical Characteristics: VS = 3 V
    8. 6.8  Typical Characteristics: VS = ±5 V
    9. 6.9  Typical Characteristics: VS = 3 V
    10. 6.10 Typical Characteristics: VS = 3 V to 10 V
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Stage
      2. 7.3.2 Output Stage
        1. 7.3.2.1 Overload Power Limit
      3. 7.3.3 ESD Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Down Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Active Filters
        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 Low-Power SAR ADC Driver and Reference Buffer
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Revision History
  12. 11Mechanical, 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）
  • DBV|5
サーマルパッド・メカニカル・データ
発注情報

8.2.2 Low-Power SAR ADC Driver and Reference Buffer

Figure 8-3 shows the use of the OPAx863A as a SAR ADC input driver driving the .ADS7057 sensors, which are used for interface with the physical environment, exhibit high output impedance, and cannot drive SAR ADC inputs directly. A wide-GBW amplifier, such as the OPAx863A, is needed to charge the switching capacitors at the SAR ADC input, and quickly settle to the required accuracy within the given acquisition time. The OPAx863A wide-GBW, high precision performance enables fast settling, high accuracy sensor measurements, and reference buffering for precision ADCs.

GUID-20221123-SS0I-PDWC-WFNJ-HNRDMPR3RKPC-low.svg Figure 8-3 OPAx863A as a Precision SAR ADC Driver