ZHCSOM5D April   2006  – September 2021 LMH6321

PRODUCTION DATA  

  1. 1特性
  2. 2应用
  3. 3描述
  4. 4Revision History
  5. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Operating Ratings
    3. 5.3 Thermal Information
    4. 5.4 ±15 V Electrical Characteristics
    5. 5.5 ±5 V Electrical Characteristics
    6. 5.6 Typical Characteristics
  6. 6Application Hints
    1. 6.1  Buffers
    2. 6.2  Supply Bypassing
    3. 6.3  Load Impedence
    4. 6.4  Source Inductance
    5. 6.5  Overvoltage Protection
    6. 6.6  Bandwidth and Stability
    7. 6.7  Output Current and Short Circuit Protection
    8. 6.8  Thermal Management
      1. 6.8.1 Heatsinking
      2. 6.8.2 Determining Copper Area
      3. 6.8.3 Procedure
      4. 6.8.4 Example
    9. 6.9  Error Flag Operation
    10. 6.10 Single Supply Operation
    11. 6.11 Slew Rate
  7. 7Device and Documentation Support
    1. 7.1 接收文档更新通知
    2. 7.2 支持资源
    3. 7.3 Trademarks
    4. 7.4 Electrostatic Discharge Caution
    5. 7.5 术语表
  8. 8Mechanical, Packaging, and Orderable Information

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)
  • KTW|7
  • DDA|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

Supply Bypassing

The method of supply bypassing is not critical for frequency stability of the buffer, and, for light loads, capacitor values in the neighborhood of 1 nF to 10 nF are adequate. However, under fast slewing and large loads, large transient currents are demanded of the power supplies, and when combined with any significant wiring inductance, these currents can produce voltage transients. For example, the LMH6321 can slew typically at 1000 V/μs. Therefore, under a 50 Ω load condition the load can demand current at a rate, di/dt, of 20 A/μs. This current flowing in an inductance of 50 nH (approximately 1.5” of 22 gauge wire) will produce a 1 V transient. Thus, it is recommended that solid tantalum capacitors of 5 μF to 10 μF, in parallel with a ceramic 0.1 μF capacitor be added as close as possible to the device supply pins.

GUID-69356D23-D597-44E7-A6A4-6C986B6A4050-low.gif Figure 6-2 50 Ω Coaxial Cable Driver with Dual Supplies

For values of capacitors in the 10 μF to 100 μF range, ceramics are usually larger and more costly than tantalums but give superior AC performance for bypassing high frequency noise because of their very low ESR (typically less than 10 MΩ) and low ESL.