• LT6017 and ADAQ7988

    I am testing a circuit that seems to be exhibiting strange behavior vs simulation.

    I expect a DC gain of ~1.4x, which the simulation shows.

    This is the circuit in question.  The final amplifier is a placeholder for the ADAQ7988's internal ADC driver.…

  • ADAQ7988让人不那么满意(吐槽一下)

     

    原来选用的adi公司的ad7988,看见新出的ADAQ7988,把很多外围驱动运放和电路做到了内部,兴冲冲的去下载了手册    研究完了心里凉了一半,输入范围比原来限制的狠了  VADD-1.3   ,为了避免这个问题推荐了7.5V和-2.5V的供电,  节省的板子空间让几个电源芯片又给占了回来  ,成本反而上升了很多。另外为啥要LGA封装啊,这样很考验我的焊接功夫啊,  想说爱你真的是不容易啊。我建议应该把电源也内置了,外部做成单5v供电的   io接口采用开漏结构…

  • RE: Are there any microphonic effects from the internal ceramic capacitors in these umodule ADCs?

    On behalf of Ryan Curran.
    Our uModule products undergo full package qualification and reliability testing just like our standard monolithic products. During this process we did not observe any undesired performance due to vibration of the component. In…

  • RE: ADC Part selection

    Hi Divya,

       You can check the ADAQ7980 and ADAQ7988 or the AD7655(AD765x family) which are 6 channels 16 bits 250ksps ADCs. You can refer to the link for the short list of parametric search.

       There is another option to use a single supply ADC, you just…

  • 6篇博客,教你如何使用集灵活性和高集成度于一身的全能ADC μModule数据采集系统——ADAQ798x

    在持之以恒的实现高通道密度的努力中,许多系统设计师在寻找使用较少电路板面积,但仍能达到严格性能标准的数据采集解决方案。ADI直面这些挑战,推出首个μModuleRegistered数据采集系统系列——ADAQ7980和ADAQ7988。ADAQ798x系列将常见信号处理和调理模块集成到系统化封装(SiP)设计中,支持高通道密度,可简化设计过程,并提供出色的性能。

    欲先了解该系列博客的主角请点击:

    ADAQ7980:

    http://www.analog.com/cn/products/analog-to-digital…

  • RE: Ask a question about SAR ADC ANALOG INPUT ARCHITECTURES

    Hello,

    Hopefully the sketch below clears this up. Basically the scenario described is if you have some sensor, etc. that has a large common-mode output voltage. In the figure provided, this is represented by VCM.

    For many ADCs, connecting such a sensor…

  • RE: Need of ADC's for biomedical Signal processing

    Kowshik,

    For the best fidelity in measurement, I would recommend a precision ADC, and these are available in speeds of greater than 1Msps, which is certainly fast enough for most biometric signals. For Analog Devices, High Speed ADC's are for much higher…

  • A DAQ of All Trades: Flexibility Meets Integration in ADAQ7980

    In the unrelenting march towards high channel density, many system designers are searching for data acquisition solutions that use less board area, while still meeting strict performance criteria. ADI is meeting these challenges head-on with its first…

  • RE: About the resistance value and the capacitor Value of AD7946

    Hello Yuya,

    The RC filter highlighted in Figure 25 is an important piece of the AD7946 front-end design. It acts to both reduce the noise that gets into the AD7946's inputs and to reduce voltage transients that occur when the AD7946's internal capacitive…