• AD7177-2采样率问题

    AD7177配置成外部时钟,连续读取模式,1KHz采样,但是从示波器看到的DOUT/RDY引脚输出的下降沿频率只有998Hz,给入的MCLK精度为1ppm,理论上不应该出现这么大的误差,请问这个现象是由什么原因导致的?并且该如何改善?

  • AD7177-2

    当采用正负2.5V供电时,REF+与REF-应该是多少?REF-是与GNG连接还是与AVss连接

  • 关于AD7177-2的单端电压采集问题

    AD7177-2工作在差分输入(AIN0/AIN1)数据读出没有问题,但当我更改通道寄存器配置为0x8044,使用单端输入(AIN2/AIN4)后,我确认通道寄存器配置成功,从通道寄存器读出的也是0x8044,但是数据读出的都是0xffffff,请问问题出在哪里、该怎么解决?

  • AD7177-2 REF(-) usage

    Hi

    I understand VREF=REF(+)-REF(-)

    But, I'm NOT sure how REF(-) is used.

    So, would you teach if my setting works correctly for AD7177-2 below.

    ADD1=AVDD2=IOVDD=REF(+)=2.5V, AVSS=REF(-)=-2.5V and analog input range: ±2.5V/gain

  • AD7177-2 PCB Layout Recommendation

    Hello everyone,

    I am currently working on my first mixed-signal pcb project. I will be using the ADXL354 as my sensor and the AD7177-2 as my ADC. I plan to use separate ground planes for my digital and analog circuits.

    Based on this article (https://www…

  • AD7177-2模拟输入没采到信号

    AD7177-2搭配SDP-CB1Z,两者连接后没有其他连接。AIN0输入正信号,AIN1输入负信号,输入的正弦信号幅值10mV,频率1Hz,软件各类设置保持默认,界面上只有噪声信号,没有看到正弦波形,请问该怎么调整?

  • AD7177-2 different data rates for different channels

    Hello,

    I want to read data from two inputs (AIN0 and AIN2). AIN0 is a very low frequency signal, and AIN2 has a notably higher frequency. I'd like to use two different data rates to achieve the highest possible accuracy on AIN0 (5 SPS), while still honouring…

  • AD7177-2模拟输入问题

    AD7177-2搭配SDP-CB1Z,两者连接后没有其他连接。AIN0输入正信号,AIN1输入负信号,输入的正弦信号幅值10mV,频率1Hz,软件各类设置保持默认,界面上只有噪声信号,没有看到正弦波形,请问该怎么调整?

  • AD7177-2模拟输入问题

    AD7177-2搭配SDP-CB1Z,两者连接后,除电源和USB没有其他连线,保持板子原状。AIN0输入正信号,AIN1输入负信号,输入的正弦信号幅值10mV,频率1Hz,软件各类设置保持默认,界面上只有噪声信号,没有看到正弦波形,请问该怎么调整?

  • RE: AD7177-2, How can I get the real value of my REF voltage ?

     if I do not perform offset calibration(Internal offset calibration), the output value is close to  2.496149 V maybe 2.497xxxV.

    This equation is the only equation I found on the AD7177-2 datasheet Page40. And I don't know the standard equation.