• Interpreting AD7991 outputs

    Hi All,

    I'm have a question on AD7991.

    How should we interpret the data? Is it big endian? little endian? or something other format?

    Understand that 3 bytes is rather uncommon format.

    Can anyone give me some advise on this?

  • ad7991 reference

    For AD7991, Vref can use 5V?

    With Vref=5V, can i supply Vdd= 5V and how about the I2C signal?

  • 关于ad7991转换的一些疑惑

    您好,我在使用ad7991时遇到一些问题

    1. 使用ad7991 配置 配置寄存器是上电配置一次就行了吗?还是说每次读取都要配置
    2. ad转换是在什么时候转换的?是读取结果时写完地址和rw就开始转换了吗?还是说要写寄存器?
  • RE: Getting ad7991 into high speed

    Hi Daryl, thank you for your response.  I could make it works now. The problem I had using fast speed wasn’t the code, it was the pull up resistor I used in SDA signal and because of that, I had a delay in the rissing edge of SDA.  That delay doesn’t affect…

  • RE: Is there any documentation on the AD7991 evaluation board standalone mode ?

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • ad7991 with odc - Unable to create buffer

    Hi,

    I am using the ad7991 adc with the Raspberry Pi2.

    Reading single values from the \iio:device0\in_voltage0_raw works fine, but when trying to stream the data with osc, I am getting errors "Error while reading data: Resource temporarily unavailable…

  • AD7991应用时需要注意些什么?

    用FPGA控制AD7991进行四通道转换时,需要注意些什么?如何确定是否配置正确?

  • 关于数模转换芯片AD7991使用的一些疑惑

    这个芯片在使用时,有一些配置寄存器,用于配置芯片的工作方式。这个寄存器,配置完断电后,还需要再次配置吗?

    这个芯片有两个型号—0和—1,配置时,地址不一样。在芯片上没看有标识,怎么判断是哪个型号的?

  • how to configure ad799x.c linux driver

    Hi,

    I am a pretty newbie to developing linux embedded systems and working on the Jetson nano 2gb dev kit, which is Ubuntu 18.04.

    What I want to do is to use an i2c device(ad7991) to read analog feedback and control two motors.

    So far what I have…

  • RE: AD7992-0

    有 AD7991的示例代码,AD7991 与 AD7992 功能类似,可以参考一下

    www.analog.com/media/cn/example-code/ADC/ExampleCode_ADC_AD7991.zip

    最快典型转换时间为2uS