ZHCSBR3C December   2013  – May 2018 OPA355-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison Table
    1. 5.1 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Operating Voltage
      2. 8.3.2 Enable Function
      3. 8.3.3 Output Drive
    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 Transimpedance Amplifier
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Optimizing The Transimpedance Circuit
        3. 9.2.1.3 Application Curve
      2. 9.2.2 High-Impedance Sensor Interface
      3. 9.2.3 Driving ADCs
      4. 9.2.4 Active Filter
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 商标
    2. 12.2 静电放电警告
    3. 12.3 术语表
  13. 13机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DBV|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.3.2 Enable Function

The OPA355-Q1 device is enabled by applying a TTL high-voltage level to the enable pin. Conversely, a TTL low -voltage level disables the amplifier, which reduces the supply current from 8.3 mA to 3.4 μA per amplifier. This pin voltage is referenced to a single-supply ground. When using a split-supply, such as ±2.5 V, the enable and disable voltage levels are referenced to V–. For portable battery-operated applications, this feature is used to greatly reduce the average current and as a result, extend battery life.

The enable input is modeled as a CMOS input gate with a 100-kΩ pullup resistor to V+. The enable pin assumes a logic high and the amplifier turns on if the enable pin is left open.

The enable time is 100 ns and the disable time is 30 ns, which allows the OPA355-Q1 device to operate as a gated amplifier, or to have the output multiplexed onto a common output bus. When disabled, the output assumes a high-impedance state.