hi all:
Looking at the AD7667 datasheet, I have troubles understanding Figure 45. Using the AD7667 in 16-Bit Bipolar and/or Wider Input Ranges.
Why the op amp can convert ±10V to 0-2.5V. Should U2 connect the analog input signal to R2 and R3? But the…
Hello!
I am now using an AD7667 conversion chip, and I use the internal reference voltage, the parallel model, but my output has been FF7F, through inspection , I found that the internal reference voltage on the pin of REF is about 0.3V, this means…
您好。AD7667在INL，DNL，SNR，ENOB等性能上较AD7653均有提升。
您们好，我现在在用一款AD7667的模数转换芯片，采用的是内部参考电压，并行模式，但我的输出一直都是FF7F，经检查发现内部参考电压引脚上的电压我0.5V左右，也就是说内部参考电压出问题了。可是我的PD,PDREF,PDBUF都为低，SER/PAR设置为高（即并行），采用的是IMPULSE模式。出现这个问题是什么原因呢？谢谢前辈们@的帮忙！
第一次使用AD7667采集信号，电路按照ADI官网上提供的推荐电路，采集信号后做线性拟合，发现白噪声降下去后就会出现一定周期性的噪声波动，为了对比，使用信号发生器模拟产生相同的信号送到该AD中一样会出现这样的周期性噪声，请哪位大神帮忙解答，万分感谢。
Apologies that the ADC you are using is not in the tool. The AD7667 datasheet gives a recommendation for the RC filter and a suitable driver. See Figure 26 and pages 18-19.
www.analog.com/.../AD7667.pdf
DO you have 16bit precision ADC with master SPI so it can generate clock pulses on its own. Like AD7667. But AD7667 has too many pins.
Is there a product like AD7685 that has SPI master feature? With AD7685, so I don't have to use additional FPGA…
AD7667,.
AD7641 for next upgrade.
Hi,
The AD7767 has a feature to make the part as the master where it can provide serial data clock and SYNC signal. The AD7667/AD7671 family has this feature you may check on these parts on the ADI site (http://www.analog.com/media/en/technical-documentation…