• RE: DA板卡输出驱动长电缆,放大器选型?

    您好!现在遇到一个问题,向您请教。

    我用+15V 0.5A和-15V 0.5A电源模块给二十四路AD817供电,工作时发现随着通电时间的延长,AD817芯片表面温度有点高,手摸起来烫手,而且随时间有升高的趋势。采用的是DIP8塑料封装的,这正常吗?正常该芯片消耗7mA电流,功耗210mW,怎么估算芯片工作时的温升?

  • RE: How to use spice model in LTspice?

    Hi,

    Download the AD817.cir file from Analog site.

    Open it using your LTspice program.

    Point on the line where the ".subckt" line and right click on it to create symbol.

    The box symbol created is located on the "Auto-generated" library in LTspice…

  • I need an opamp which is able to drive unlimited load capacitance with high output current

    The load can be thousands of microfarads and I would like to drive 500+ mA into and out of it.

    Is there an opamp that can do this?

    Or is there a way to increase the output current of a opamp like the AD817 without compromizing it's unlimited cap drive…

  • Queries about AD8099

    Dear Supporter,

    I have a query about AD8099. I use AD8099 in my product. The package is SOIC-8.

    The power supply is +/-5V. The gain is set as -10.

    Input signal is square wave with the frequency of 2MHz.

    After increasing the input amplitude, the output…

  • RE: Does the LTspice model of ADG1434 also model the CS/CD (ON/OFF) capacitance?

    Hi Igor,

    Thank you for the information. My main issue is driving multiple analog switches (capacitive load) with AD817, I have described everything here: https://electronics.stackexchange.com/questions/548062/how-to-properly-drive-parallel-analog-switches…

  • RE: Amplifiers for active electronic load

    Hi Tim,

    For the LT1006, I think the ADA4638-1 is an excellent part as replacement. ADA4638-1 is a high voltage, high precision, and zero-drift amplifier with rail-to-rail output. It has lower input offset voltage and drift, lower offset current, and…

  • AD846 - open loop transimpedance can be reduced?

    I have a question concerning the AD846, regarding the simplified schematic of
    the AD846 from datasheet.   The amplifier has an open loop transimpedance of
    200MOhm.  I would like to decrease this value to a choosen fixed value,  5k for
    example…
  • TAGS LIST: Amplifiers

    AD600
    AD602
    AD603
    AD604
    AD605
    AD8264
    AD8330
    AD8331
    AD8332
    AD8334
    AD8335
    AD8336
    AD8337
    AD8338
    ADL5246
    ADL5330
    ADL5331
    LTC6412
    HMC6187G
    HMC997G
    HMC996
    HMC694G
    AD8368
    AD8351
    AD8367
    AD75071
    AD552…
  • 技术干货第一弹丨运算放大器常见问题解答(独家放送!)

    运算放大器常见问题解答

    1. 双电源供电的放大器能否用于单电源配置?
    2. 如何防止过压?
    3. 如何解释放大器的负载电流规格?
    4. 使用高阻抗源的噪声考虑因素是什么?
    5. 哪种电阻值可用于低噪声应用?
    6. 单电源使用时的输出摆幅
    7. 放大器的容性负载驱动

    1.双电源供电的放大器能否用于单电源配置?

    Q:我在PLL设计中使用+12/-5V电源运行此元件[AD8610]。现在我发现使用+12和0V也运行得很好(不管规格是什么)。我需要一些有关我这样使用此元件可能会遇到的问题。(规格为最小+5/-5V)

    A:运算放大器没有接地端子…