ZHCS019J January   2011  – March 2021 OPA2836 , OPA836

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and 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: OPA836
    5. 7.5 Thermal Information: OPA2836
    6. 7.6 Electrical Characteristics: VS = 2.7 V
    7. 7.7 Electrical Characteristics: VS = 5 V
    8. 7.8 Typical Characteristics: VS = 2.7 V
    9. 7.9 Typical Characteristics: VS = 5 V
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Input Common-Mode Voltage Range
      2. 8.3.2 Output Voltage Range
      3. 8.3.3 Power-Down Operation
      4. 8.3.4 Low-Power Applications and the Effects of Resistor Values on Bandwidth
      5. 8.3.5 Driving Capacitive Loads
    4. 8.4 Device Functional Modes
      1. 8.4.1 Split-Supply Operation (±1.25 V to ±2.75 V)
      2. 8.4.2 Single-Supply Operation (2.5 V to 5.5 V)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1  Noninverting Amplifier
      2. 9.1.2  Inverting Amplifier
      3. 9.1.3  Instrumentation Amplifier
      4. 9.1.4  Attenuators
      5. 9.1.5  Single-Ended-to-Differential Amplifier
      6. 9.1.6  Differential-to-Signal-Ended Amplifier
      7. 9.1.7  Differential-to-Differential Amplifier
      8. 9.1.8  Gain Setting With OPA836 RUN Integrated Resistors
      9. 9.1.9  Pulse Application With Single-Supply
      10. 9.1.10 ADC Driver Performance
    2. 9.2 Typical Applications
      1. 9.2.1 Audio Frequency Performance
        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 Active Filters
        1. 9.2.2.1 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
      2. 12.1.2 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 静电放电警告
    5. 12.5 术语表
    6. 12.6 Trademarks
  13. 13Mechanical, Packaging, and Orderable Information

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8.3.1 Input Common-Mode Voltage Range

When the primary design goal is a linear amplifier with high CMRR, it is important to not violate the input common-mode voltage range (VICR) of an operational amplifier.

The common-mode input range specifications in the table data use CMRR to set the limit. The limits are selected to ensure CMRR will not degrade more than 3 dB below the CMRR limit if the input voltage is kept within the specified range. The limits cover all process variations and most parts will be better than specified. The typical specifications are from 0.2 V below the negative rail to 1.1 V below the positive rail.

Assuming the operational amplifier is in linear operation, the voltage difference between the input pins is small (ideally 0 V) and input common-mode voltage is analyzed at either input pin with the other input pin assumed to be at the same potential. The voltage at VIN+ is simple to evaluate. In noninverting configuration, Figure 8-1, the input signal, VIN, must not violate the VICR. In inverting configuration, Figure 8-2, the reference voltage, VREF, must be within the VICR.

The input voltage limits have fixed headroom to the power rails and track the power supply voltages. For one 5-V supply, the linear input voltage ranges from –0.2 V to 3.9 V and from –0.2 V to 1.6 V for a 2.7-V supply. The delta headroom from each power supply rail is the same in either case: –0.2 V and 1.1 V.