ZHCSJO8 May   2019 OPA818

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

  1. 1 特性
  2. 2 应用
    1.     高速光学前端
  3. 3 说明
    1.     光电二极管电容与 3dB 带宽间的关系
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     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: VS = ±5 V
    6. 6.6 Typical Characteristics: VS = ±5 V
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input and ESD Protection
      2. 7.3.2 Feedback Pin
      3. 7.3.3 Decompensated Architecture With Wide Gain-Bandwidth Product
      4. 7.3.4 Low Input Capacitance
    4. 7.4 Device Functional Modes
      1. 7.4.1 Split-Supply Operation (+4/–2 V to ±6.5 V)
      2. 7.4.2 Single-Supply Operation (6 V to 13 V)
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Wideband, Noninverting Operation
      2. 8.1.2 Wideband, Transimpedance Design Using OPA818
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Thermal Considerations
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12机械、封装和可订购信息
    1. 12.1 Package Option Addendum
      1. 12.1.1 Packaging Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.1 Overview

The OPA818 is a 13 V supply, 2.7 GHz gain-bandwidth product (GBWP), voltage feedback operational amplifier (op amp) featuring a 2.2nV/√Hz low noise JFET input stage. The OPA818 is decompensated to be normally stable in gains ≥ 7 V/V. The decompensated architecture allows for a favorable tradeoff of low quiescent current for a very high GBWP and low distortion performance in high gain applications. The high voltage capability combined with 1400 V/µs slew rate enables applications needing wide output swings (10 VPP at VS = 12 V) for high frequency signals such as those often found in optical front-end, test and measurement applications, and medical systems. The low noise JFET input with pico amperes of bias current makes the device particularly attractive for high transimpedance gain TIA applications and for test and measurement front-ends. OPA818 also features power down mode that disables the core amplifier for power savings.

OPA818 is built using TI's proprietary high-voltage high-speed complementary bipolar SiGe process.