• Is there a model for simujlating hte ADP121?

    I would like to simulate the ADP121 in my circuit. Is there a model for the ADIsim tool?

  • RE: CN0269


    Using 5V instead of 6V to power the board should not affect the measurement, but it is still recommended to use the board as specified.

    Looking at the schematic for the board found here it can be seen that the 6V voltage is being regulated to 5V…

  • RE: ADP3339 minimum input power and tolerance

    Hi Peter,

    Apologies for the delayed response, I'm still securing the board and ICs. Looking at this again though, I'd agree with Harry. It would be better to look at possible replacement parts that you could use in your circuit, pls see attached excel…

  • About overcurrent protection and selecting external diode

    Hi ,

    I have some questions about LDO products.


    It looks like that ADI LDO products have current limitting protection, not current foldback.

    I just wondered why most LDO's current protection is current limitting.


    Now I'm condering to…

  • RE: Best way to interface with ADXL346 from a 3.3V MCU?

    Hi YJ,

    The ADXL346 is a good choice for 2.5v or 1.8v processor IO signals.  The Vs signal on pin 14 is the analog supply voltage and should be connected to a quiet supply to get the lowest noise acceleration measurements.  There are parts like the ADP121…

  • RE: LDO用于数字负载、模拟负载以及射频负载需要关注哪些指标?

    LDO用于模拟和射频负载: 像ADP121和ADP130具有的低噪声和高电源抑制(PSR)性能对模拟环境中使用的LDO来说非常重要,因为模拟器件比数字器件对噪声更敏感。模拟LDO需求的主要来自无线接口要求——不损伤接收器或发送器,并在音频系统中不产生爆破音或嗡嗡声。无线连接非常容易受噪声的影响,如果噪声干扰到信号,接收器的效果将大打折扣。在考虑模拟线性稳压器时,器件要能抑制来自上游电源和下游负载的噪声,而且自身不增加噪声,这一点很重要。


  • AD5542A pin description

    I plan to use AD5542A (16 pin TSSOP) in my design. Now I find the pin description on its datasheet is not compatible with the schematic of its evaluation board (ad5542_ug). 

    Could you verify the pin description of AD5542A?

  • ADI最新的EM流量计解决方案上线啦






  • LDO关键的指标和定义,您了解多少




  • RE: about ADRF6820

    Hi Henry,

    The impedance presented to the IQ output should be 200 ohms differential.  This is accomplished with resistive pads on our EVB, to  allow connection to a 50 ohm instrument and still present 200 ohms to the part.  This padding gives 17 dB of attenuation…