• RE: 要对250MHz的300多mV的电压信号放大至少十倍,选择哪款芯片合适

    根据您的要求,可以计算一下满足要求的运放的slew rate的值:2V*Pi*250MHz,那么slew rate需满足3.14kv/us.根据这个条件您可以考虑用两级放大:AD8003。 AD8003内部集成了3个运放,所以您可以直接是2个就可以了。

  • unable to achieve gain using AD8003

    before entering in to problem:

    my application is a laser pulse detection, in this process when a laser pulse falls on photo diode it generates current, later stages include a I-V conversion, Gain,difference amplifier and comparator

    my pulse characteristics…

  • AD8003运放在80M处总有谐波,求指导

    我在调试AD8003时,参照技术手册10倍放大进行装配,只用一个通道,正负5伏供电,RS=0,RG=33欧,RF=300欧,RL=150欧,PD脚接+5V,测试示波器输入阻抗1M欧,测试时输入10mV正弦波,频谱分析是发现在80MHz出总有谐波,而且从30MHz开始上扬,到80MHz时放大倍数达到300倍,过了80MHz后开始衰减。后来改为5倍放大情况依然如上所述,实在是不能理解呀,求指导!!

  • RE: 怎么实现2G速率,峰峰值为2V的交流信号模拟相加

    这个2G是 2V峰峰值频率为2G的正弦波么?如果对频率要求不是这么高,电流型反馈运放,AD8003可以试一试。

  • Are there application notes/schematics showing the AD8000's configured as an instrumentation amplifier?

    Hello,


    I need to build an ultra-high speed instrumentation amplifier for an ultra-wideband radar I am building.  Are there application notes or schematics to use the AD8000, AD8003, or the AD8009 configured as an instrumentation amp? I need an instrumentation…

  • RE: Amplifier selection help: DC amplification

    Hi, Alisa,

        Your requirements can probably best be met with one of the following Current FB Opamps together with another inverting stage (with G=2 to make up for the voltage division with a 50 ohm series output resistor into the 50-ohm load).:

    -- AD8003…

  • RE: 激光二极管驱动芯片选择

    你这个需求,需要采用高速运放来驱动,你的需求可以在ADI官网找到很多型号,如:LT6411、AD8003、LT6556.......具体就要看你的其他需求了

  • RE: Next step in frequency response beyond AD8429

    Hi Bryan,

    I support the AD8003 as well as our other high-speed current feedback amplifiers (CFAs).  I have to disagree with the comment that CFAs cannotbe used in the traditional 3-amplifier in-amp configuration.  We offer a number of DSL drivers that…

  • RE: HDMI / DVI to NTSC using ADV7611->ADV7125->AD725

    Hello,

    4:2:2 or 4:4:4 is fine either way. Not sure why you would use the secondary VSP instead of the primary, but it doesn't particularly matter. You could output Y/C separately in parallel with CVBS, but you don't have to.

    Not sure I see why…

  • 放大电路设计必备宝典——论坛问答精华帖汇总

    ADI中文技术论坛开放以来,以“48小时快速解答技术问题”的专家团队响应机制受到中国工程师的热烈关注,注册用户持续增长,提问尤其踊跃。2013年底,美国新传播研究协会(SNCR)授予ADI技术支持论坛2013年度卓越成就奖!

    ADI中文技术论坛不仅为工程师提供技术咨询的窗口,还为大家的经验分享交流提供了一个宝贵的平台:

    • 这里累积了上万条工程师在实际设计中的技术问题及专家解答,这些来自设计实践中的技术问答是工程师们的设计参考宝典;

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