• AD7993

    1现在有几颗AD7993芯片,发现CS管教和IOUT1管教短路。

    2.用5V上拉,上拉电阻为10K,发现CS管教为0.5V左右,DIN管脚为5V左右,SCLK管教为2V左右,达不到我想要的电平是怎么一回事呢?

  • AD7993 keeps reading same channel

    I am having difficulty reading from different channels. I read the same channel
    8 times. Can you give a general sequence I should follow?

     

    START
    Write Address
    ACK by AD7993
    Command mode byte 0x30 (set command bits to 0011 and address…
  • AD7993 I2C ACK problem

    Hi

    I am using a MCU (PIC32MX795F512L) to interface with the AD7993-0 ADC over I2C.

    I have connected the device in the test setup shown in the following schematic.

    1. VDD is stable at 3.28V.
    2. I2C pullups : 1K (A bit aggressive)
    3. I2C clock freq :…
  • RE: EVAL-7993 not functioning - "Firmware Not Loaded!" error

    Hi, Thom.

    Can you check on your Device Manager and see if you can find AD7993/AD7994 Evaluation Kit? Also, what OS are you working with?

    Regards,

    Karen

  • AD7994 filter

    The AD7992 AD7993 AD7994 AD7997 AD7998 have a bit D3 in the Configuration Register defined as FLTR, with a vague description that this filters the I2C bus.  What filtering does this bit enable? Where is this documented? 

  • RE: AD7997 - No ACK after LSB of configuration

    Hi,

        

         If it is fine to share your schematic so we can have a better understanding of the problem. Please follow the recommended connection diagram on fig. 22 of the datasheet. You may also want to refer on this post that might be related to your problem…

  • Recommended Sequency to change channels over I2C

    I can't change channels on the AD7998, I get the same value 8 times. Can you
    give a recommended sequence to change channels over I2C?

     

    START
    Write Address
    ACK by AD7993
    Command mode byte 0x30 (set command bits to 0011 and address…
  • RE: ADC选择

    采样率大致可以有转换的时间来计算,也就是1/80us=12.5KHz,那么也就是ADC的采样率必须要大于12.5KSPS。推荐的型号请参考附件。