• AD7994: FAQs

    I got last week the evaluation board for the AD7994. I installed the software
    and connected the board via the USB to a Windows7 (64-bit) PC. The OS complains
    about the USB device driver. So I can't use the board and the software so far.
     

  • 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? 

  • AD7994 Linux drivers

    I am using a Yocto-based embedded Linux platform, and we would like to interface to the AD7994.  I've downloaded the drivers available from ADI, but I am still unable to access the ADC.  I'd rather not publish my code on this public forum.  Is there…

  • AD7994 MODE1

    Hi

    I'm a DFAE in Japan. Our customer studies AD7994 and asks some questions as follows.

    1. Regarding MODE1, how long is the conversion time when the register setting [D7:4] is 1111? Our understand would be roughly 2us*4ch=8us. For details, /CONVST…

  • AD7994:  Loses I2C communication

    My customer has a design that has been working for many months but is now seeing that the I2C communication is being lost with the AD7994.  Are there any unpublished or common issues seen around the I2C interface?  Thank you!

  • AD7994: 64-bit driver for EVAL-AD7994EBZ

    I got last week the evaluation board for the AD7994. I installed the software
    and connected the board via the USB to a Windows7 (64-bit) PC. The OS complains
    about the USB device driver. So I can't use the board and the software so far.
     

  • AD7994: 64-bit drivers for EVAL-AD7794EBZ

    I got last week the evaluation board for the AD7994. I installed the software
    and connected the board via the USB to a Windows7 (64-bit) PC. The OS complains
    about the USB device driver. So I can't use the board and the software so far.

    Could…

  • AD7994: Trouble reading anything other than channel 1

    AD7994: Trouble reading anything other than channel 1. I'm using three AD7994s to read some amplified photodiode outputs. It seems that for each ADC, I can only read channel 1.

    I'm using the AD7994s in Mode 2 (Command Mode). I initiate a write to…

  • how can I get data from channel 2 of the AD7994

    I am connecting to an AD7994 from an NXP LPC17xx processor. My code is written in C using the Keil compiler. I am able to read data from the AD7994, but it always only returns one 16 bit value. I believe this is from channel 1. I have sent the 0x30 to…

  • AD芯片采集和转换时间问题

    请问AD芯片采集和转换时间怎么算啊?就是输入到单片机之前,采集完所有通道并完成转换的时间,以AD7994为例,能不能介绍下?