Hi,
i have a circuit that requires the use of AD7862. however in my country (Malaysia) it is not available, and purchasing for outside of the country is time consuming and costly. i asked AD for a pin-compatible IC for replacement and they suggested…
Hello!
I'm doing a project in which a voltage of 3.3 V is used to power the logic part, so the question is:
Can I use a VDD = 3.3 V in a AD7862-10?
Thanks!!! (Sorry for my bad English).
I am diagnosing noise on a legacy design that has an AD7862 ADC. Typical signal is 2 to 5 Hz sinusoid. Sample rate is ca 7500 Hz. Problem is that converted digital signal is affected by at least +/- 5% by the sample rate. If I do an FFT I see the sinusoid…
Dear Sir/Madam,
Our customer have 3 questions for your AD7862 ADC.
As for your time chart fig-1 following,
Q-1
During /CONVST=L, and
When /CS=L and /RS=H, is your output data affected?
I think that no problem for this case correct?
But if /CS=L and …
根据最新内核中的AD7949驱动程序只能实现单次数据采样，而使用触发器中断采样，将很大的消耗处理器资源，目前我们能够做到50ksps左右的采样速率，
难道使用Linux系统无法达到最大250ksps的速率吗？我们查看数据手册发现，AD7862要求每次转换之前必须进行CNV使能，即SPI线CS必须拉高，这一限制导致采样率无法提高。如果这款芯片不行，能不能推荐一款4通道，采样率在200KSPS以上的ADC芯片。
谢谢！！
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