• AD9215

    Hi

    I have a question AD9215.

    Although it has a single-ended configuration as shown in the datasheet, in order to reduce the current consumption, if the resistance to create the bias potential from AVDD is set to about 10 kΩ, it can not be assumed p…

  • AD9215选型

    请问AD9215BRUZ和AD9215BRUZRL7之间的区别,选哪个型号更为合适???

  • AD9215: Using a DC input

    What is the best configuration for the input of this device to measure a single
    dc voltage? I have currently tied Vin- input to half AVDD and decoupled it with
    100pF, and I am feeding in a DC signal into Vin+ via a 50Ohm resistor with
  • AD9215内部参考电压不正确

    最近做了一块PCB,上面的AD9215使用内部参考电压,正常应该是1V。但是有一块板子的AD9215出问题了,刚上电时参考电压120mv,逐渐增大,最后稳定在电源电压3.3V附近。这导致刚上电AD9215不工作。请问这是什么原因?是片子坏了吗?

  • AD9215输出数据不正常

    没接信号时输出数据一直在跳变   大概从500-700左右   

    画原理图时REFB引脚接地了   会不会是这个原因导致的?

  • AD8331和ad9215的滤波波形问题

    我这边做了一个简单的示波器采集模块。前端使用AD的芯片

    AD8331ARQZ
    AD9215BRUZ

    处理器为xilinx的fpga

     

    现在做出的2批PCB,使用同样的电路设计。和同一批次的AD芯片以及fpga芯片。使用的固件和软件相同。

    只是手工焊接的2批使用的电阻电容批次不同。目前出现了不同的波形效果。差异如附图

    请教2个问题:

     

    1:附件PDF文档为采集部分的原理图…

  • AD9215输入端串联的33欧电阻的作用

    在看AD9215的参考电路时,注意到信号输入端都串联一个33欧电阻,并且引脚对地接一个电容,这个电阻的作用是什么呢?仅仅是和电容构成低通滤波器的吗?

    如下图中所标的电阻和电容的作用呢:

    看到过一些AD的输入端有时也会串联一些电阻比较小的电阻,这些电阻是起到什么作用呢,谢谢!!

  • RE: AD9218

    Hi,

    I m a little confisued:

    I m mainly referencing AN1026. Followings are main key item that lead me to have decide:


    AD8138


    A referance circuit for single ended to differential is available in AD9215 datasheet (figure-32/page15). 

    A complete…

  • RE: Question about AD8370

    Hi, Kazu,

        The AD8370 runs on single 5V supply, so the input and output common-mode range are ~ +/- 1.6V around mid-supply (i.e., from 0.9 to 4.1V), but max. output swing will be reduced as the output common-mode level approaches either extreme.  The…

  • RE: Minimum Frequency of Inputs for AD9214 and AD6644

    Hi David,

    I started the design (and layout) with the AD9214 but I am questioning my wisdom due to the end of the device.

    The AD9215 is also not a new comer, but its a little newer and the Eval boards are available (I was told the AD9214 Eval boards…