• AD7177-2 evm问题

      求问下官方评估板7177-2,配置正常情况下,将AIN1接地,AIN0悬空,测量电压,显示为5V,为啥?

  • AD7177-2采集数据会随机出现问题

    为什么AD7177-2在连续转换模式下会随机的出现一个满量程值或一个零值

  • Unable to Interface AD7177-2 with TM4C129

    Tool/software: Code Composer Studio

    Experience Level: Beginner

    Trying to establish communication between ADC and  controller via SPI. 

    Data sheet of the ADC - https://www.analog.com/media/en/technical-documentation/data-sheets/AD7177-2.pdf

    As per the data…

  • AD7177-2 Continuous Conversion Mode Issues

    I'm having issues with the continuous conversion mode in my AD7177. In order to have it start a conversion, I need to pulse my SYNC pin. ... then to get another conversion, I need to pulse the SYNC pin again. I feel like this is wrong because it seems…

  • Inconsistent register values from AD7177-2

    I'm trying to interface my AD 7177-2 with TM4C129. As of now, I'm trying to read the data register in 24 bit mode(default). I read the data register values somewhat consistently. I'm facing a strange issue when trying to read all other registers together…

  • Reading only 16 bit values from AD7177-2.

    I'm interfacing my ADC(AD7177-2 with TM4C129). I've successfully established communication between both the devices(I read ID register - 0x4FDE).

    My algorithm is as follows:

    1) Configure SPI communication in 16 bit, Mode-3

    2) Configured GPIO interrupt…

  • AD7177-2供电方式及参考基准电压选择

    AD7177-2芯片可以采用外部基准电压和内部基准电压,评估板上给出了ADR445提供5V基准和采用AD芯片内部2.5V基准两种方案,当采用3.3V给IOVDD供电,2.5V给AVDD1和AVDD2供电,-2.5V给AVSS供电时,是不是只能用AD内部的基准电压,不能再采用外部5V的基准电压了。之前设计电路,漏掉了一些细节,采用了正负2.5V的双电源,5V的外部基准,测试发现,ADP7118输出2.5V电源电压被拉高到3.9V,拆掉AD芯片后,ADP7118输出为0,应该是已经损坏,AD7177…

  • ad7177-2  32位ADC转换

    数据手册上:如果使能32位数据转换,则每次读取数据时,ADC输出28位数据加状态寄存器的4个通道。

    读到的32位数据哪几个位时状态寄存器的4个通道?

  • Questions about AD7177-2 sample rate

    My project need measure 12 channels signal,I use 3 AD7177-2,and 4 channels for each AD7177-2. These 3 AD7177-2 share a same 16Mhz clock,share a SPI BUS, and CS signals connect different GPIOs. I configure AD7177-2 to 200Hz sample rate, thus 50Hz for each ch…

  • RE: AD7177-2 data capture

    Hi Jellenie

    I have forced /CS low but same issue of no data. Is there a register that needs setting?

    I have noticed in the datasheet the following on page 27

    AD7177-2, the internal reference is enabled by default and is
    output on the REFOUT pin. When…