• ADA4895-2 disable

    I wanted to know if the disable feature of the ADA4895-2 could be used as a mux function, for when the part is under power and when it is not powered.  Can you indicate the output impedance and leakage current when the outputs are disabled?

    Also, is there…

  • ADA4895-2单电源供电问题

    你好,ADI工程师,我在使用单9V给ADA4895-2ARMZ供电,采用正相输入,增益设置10,仿真电路如下图:

    ,仿真得到的增益为10左右。但实际电路没有信号输出,运放的正输入电压偏置只有几百mv,这是为什么?

  • Inverting input configuration of ADA4895-2

    Hi, I am trying to implement High speed systems using the ADA4895-2 in inverting configuration. The circuit for the same is not that clear from the datasheet. And the circuit that I am using is not giving me the desired outputs for high frequency signals…

  • ADA4895-1/2 Data sheet Correction

    Hi ,

    Could you please correct the description with regards AMP which is used for unity-gain from ADA4895-2 to ADA4897-1/ADA4898-2 on Page 17.


    Thanking you

    With best regards and wishes

  • ADA4895-2直流偏置问题

    ADI的工程师,您好,我想问一下我使用的ADA4895-2芯片在放大时第二级会有一个1V左右的直流偏置,请问一下是怎么回事。是反馈电阻选的不对还是放大倍数一定要10倍以上

  • RE: 请教AD8432与ADA4895-2这两款芯片的两个放大通道是否可以串联使用?

    您好!

    级联放大是可以的。但是有几点需要注意。首先是AD8432输出电压与ADA4895输入电压的关系,如输出/输入共模电压,输出/输入差模电压等。还有就是AD8432经过放大后再输入ADA4895,要注意ADA4895此时工作压摆率,带宽能否满足要求。

  • ADA4895 spice model

    Hello,

    I am trying to simulate the ADA4895 VFB ampliefier with LTspice. The model has been downloaded from the product web page:

    https://www.analog.com/en/products/ada4895-1.html

    The circuit I am trying to simulate is a simple non inverting amplifier…

  • ADA4895 Active filter

    你好

    我这里用到ADI的ADA4895,做一个有源滤波器,中心频率为13.56MHz,用到医疗设备上。

    首先从ADI的网站上下载了ADA4895的器件模型,然后倒入Orcad中,进行Pspice仿真,结果OK。

    现在,开始焊接到PCBA上,就出了问题。

    ADA4895,使用的为+2.50Vdc,-2.50Vdc, Disable连接+2.5Vdc,保证控制的正常工作。

    焊接后,加上电源,不加输入信号时候,静态电流,正负电源基本上为 2mA稍多(电源显示0.002A,精度有限),这些基本正常…

  • ADA4895 Ground Plane - Reducing Stay Capacitance at Input and Output Pins

    The ADA4985 datasheet says "It is important to avoid ground in the areas under and around the input and output of the ADA4895."  

    Later it mentions how to connect the bypass caps to the ground plane.

    I am unclear where there should be ground plane…

  • Question about ADA4895

    Hi All,

    Changing resistors like attachment, the amplification is increased in case 2. It shows 20 times but theoretical value is 10 times. Why it is increased in case 2?

    Best Regards,

    Kazu