• AD8676 :input voltage exceeds the common mode voltage range


    Hi

    I have a question.

    Does AD8676 will occur "phase reversal" when the input voltage exceeds the common mode voltage range within supply voltage range?

    Ex. AD8672  D/S Page 1  "No phase reversal"

    In this regard, the same as the

    …

  • AD8675/AD8676: Exact meaning of Maximal Differential Input Voltage in Datasheet

    Hi everyone,

    My Situation:

    If build a circuit with some filter capacitors (10uF) an the input's of the OpAmp AD8676 and have the problem that after some time (days of power up/down) suddenly the OpAmp start to leak at it's positive input an sink about…

  • ad8676对5V电压基准放大至10V多次烧毁

    我按照UG-184（AD5781DAC参考电路）搭建了反比例放大电路，实现对5V电压基准放大至-10V，在PCB板上芯片内一运放电路实现电压跟随阻抗匹配功能工作正常输出5V，另一个运放出现烧毁输出13V之多，第二块在PCB板上出现了烧毁，第三块使用面包板进行测试也出现烧毁，且导致线性电源的CH4（提供5V模拟基准电压）毁坏。电源供电采用线性电源正负15V供电，电源CH2的+与电源GND相连并且也是运放的地，CH2的-作为-15V；CH1的正作为+15V，-与运放地、电源地GND、CH2正连通；CH3…

  • Can I please get s2p  files of AD8367, AD8676 and S3P  file of AD8343

    Can I please get s2p  files of AD8367, AD8676 and S3P  file of AD8343.

    Thanks & Regards,

    Shraddha.

  • RE: Spice Opamp model noise

    Hi John,

    Thank you for your question. I have tried AD8676 noise simulation in Multisim and produced the same results as yours. I believe that the AD8676 noise model has an issue and that I will forward this to the group that modeled the AD8676 SPICE…

  • RE: SPICE model for OpAmp Noise

    Hi Kapati,

    Apologies for the delayed response. The AD8676 spice model  is currently being modified. For the meantime,  you may use the AD8675 model instead. AD8676 is a dual of AD8675.

    Thanks,

    Roel

  • AD5791 Reference Buffer Opamps

    The data sheet and reference designs recommend the AD8676 for voltage reference buffers.  I would like to use an opamp that draws less supply current than the 3.4mA max of the AD8676.  The ADA4077-2 looks to have similar performance specs, and draws only…

  • RE: cn-0209

    Hi,

        That was a very helpful piece of information.Thanks.

    1. If I select voltage signals for both channel1 and channel2 ,the voltage will pass through the ADG1414 and then to AD8676.But in this case ,won't the voltages overlap?
    2. I want to modify…

  • AD8675 Input Voltage Range, Noise & LTSPICE model

    Hello

    I'm tempted to use AD8675/AD8676 but I have a couple of open questions:

    In the parametric search, the input voltage headroom for AD8675/AD8676 is given as 1.5V (typ) and 2.5V (max).

    Under what conditions do I have to consider the max specification…

  • RE: AD5781负参考电压无法拉到0V

    还是不行啊，我换成AD8676后，VREFNF的参考电压是0.48V，拉不下来。