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…
Hi,
The primary front-end configuration difference is the AD9218 Analog Input Common Mode is internally self-biased, whereas with the AD9215 the Ain CM is not internally self-biased. You have to establish the Ain CM externally in your AD9215 configuration…
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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？
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…
Hi Chris,
The low frequency and low divider ratios possible with the ADF4001 mark it out as a candidate for low frequency clocks.
If the ADF4001 is used with a very narrow loop bandwidth (like 10 Hz) then the VCXO will dominate the jitter performance…
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！！
Waveform signal after amplification 40dB AD8336. With the ad9215 to 100m sampling rate acquisition and waveform top will appear jitter, with an oscilloscope view, like the top of the analog signal is there are a lot of clutter like, as shown in the video…
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…