• Active filter using OP496

    Hi All,

    I designed a butter-worth 4th order filter with Fc = 3.5KHz,

    I wish to use the part OP496GS.

    For verification of the design I acquired the psice model of the part OP196.

    I am using Multisim 10.1 for simulation of my circuit.

    When I am doing…

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    AD8337
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    ADL5246
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    LTC6412
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  • 使用运算放大器实现直流耦合电池供电电路中的问题

    AN-581_cn.pdf

    参考ADI 应用笔记AN_581《单电源应用中的偏置和去耦运算放大器》设计直流耦合电池供电电路,在P6底部提到电路中 RA,RB电阻阻值的选择需要查看AD663A 数据手册,我查过后发现没有AD663A这款芯片,AD6634/6635/6636是已经停产了的模数转换器,数据手册中也没看到这一部分的内容,这个要怎么解决呢?

    问题2:该电路中,使用了一个跟随器电路,它是起隔离的作用吗?但是为什么反相端和输出端之间连接了一个110k欧姆的电阻呢?

  • OP296 input resistance

    Hi, i would like to know the OP296 input resistance. I was wondering if the OP296 works as a transimpedance amplifier with a 1M feedback resistance (so i need that value). any advice?.


    And the same question for ADA4528.

    Thanks.