• ADA4807-4替换ADA4851-4

    大家好,我最近在做一个210kHz信号调理电路,原来板子上单端转差分使用的芯片是ADA4851-4,查看手册比较性能参数,发现ADA4807-4较ADA4851-4更好,这边想问下,能否用ADA4807-4替换原来的芯片,会不会有问题?

  • ADA4807-4 IBIS Model

    Saludos. En este momento estoy trabajando con el amplificador ADA4807-4 (www.analog.com/.../ada4807-4.html), y necesito realizar análisis de integridad de la señal (SI), pero no puedo encontrar el modelo IBIS de este amplificador. ¿Alguien…

  • ADA4807-4 IBIS model

    regards. At the moment I am working with the ADA4807-4 amplifier ( www.analog.com/.../ada4807-4.html ), and I need to performing Signal Integrity (SI) analyses, but I can not find the IBIS model of this amplifier. Can someone help me?

  • ADA4807-4放大输出1.3M正弦波时有稳定频率为21Mhz的噪声以及42M,63M的谐波。

    示波器上对信号做FFT分析,发现噪声稳定而且幅度不小,主要就是21Mhz及其2,3次谐波。

    芯片的4运放,均设计的是同相放大2倍电路,输入信号由信号发生器给出的1.3Mhz,峰峰值1V,无直流偏置的的正弦波。

    一个一个运放测试,输出结果都一样。不明白噪声源从何而来,而且这么固定。

  • RE: ADA4807-2 Abnormal behavior during DISABLE

    Hi Fdelaram, i also had contacted customer support. basicly there is an error with the simulation model, will be fix soon.

  • ADA4807-2

    我用ADA4807-2搭建一个4阶、通带18kHz——45kHz、通带增益20dB的带通滤波器,仿真完美但是实际电路板上无输出新号。然后我把滤波电路拆成了同相比例放大电路,从3脚注入信号测1脚输出,发现无论输入信号幅值频率如何变化,输出皆为幅值不变的方波,请教一下这是什么原因?是增益过高吗?

  • ADA4807

    We are using the amplifier ADA4807-2 as an integrator. The ADA4807 is powerd from 6V. As an integrator the output is saturated to the rails. In our circuit it seems that the current consumption without any load increases with a few milliammperes when…

  • ADA4807

     

    Dear Analog Devices

     

     

     

    I am having challenge in understanding the datasheet on the ADA4807 (alternative AD8027), in respect of the output swing.

     

    My challenge is that I have an input from a potmeter, providing a voltage input to a “buffer…

  • ada4807输出直流偏置

    我选择ADA4807-1和ADA4807-4实现了数个滤波器电路和同向放大电路,但是我发现在每一个电路的输出都存在直流偏置,换成其他芯片(比如AD4096)这个偏置就会消失。请各位大牛帮我分析一下这个问题,感谢!

  • Ada4807 analysis

    I created a lt spice model of my circuit which consists of an op amp in a unity gain voltage follower configuration which feeds a SAR ADC. I also included the flywheel circuit in front of the adc. There are two models, each one having a different op amp…