• Hi, Is the ADA4895-1 suitable for making an active low pass filter(like an integrator), I want the gain factor more than 20, and I'm not sure whether this amp is suitable for this application since there is no such recommendation in the datasheet.

    Hi, Is the ADA4895-1 suitable for making an active low pass filter(like an integrator), I want the gain factor more than 20, and I'm not sure whether this amp is suitable for this application since there is no such recommendation in the datasheet. It…

  • 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…

  • ADA4895-2 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 spec question

    Trying to ascertain the true Gain Bandwidth Product on this device - the closest the data sheet comes to that seems to be on page 21 talking about transimpedance design - there does not appear to be a number given there or anywhere - and no, the min gain…

  • 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

  • ADA4895 SPICE model accuracy

    Hi,


    The open loop response I'm getting from the ADA4895 SPICE model does not look very realistic when compared to the datasheet.  Besides the dominant pole all I see is a single pole-zero pair around 1 GHz giving a phase dip down to about -145 degrees…

  • ADA4895 Distortion vs Vout

    I'm designing a Lock In amp which after processing will have a bandwidth of 10Hz - so the noise floor is very low ~40nV RMS (heavy loading by feedback network obviously) at ADA4895 output, G=10.  It is therefore important to know how the distortion…

  • ADA4895 Distortion in dBc to %

    I am having difficulty converting your distorsion specification from DBc to
    percentage (%), for example -96dBc.

     

    The following Analog Dialogue article may be of use, it explains some Amplifier
    Distortion
    Specifications:
    http…
  • 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…

  • ADA4895-2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