EEG Measurement

I want to design a EEG Acquisition SMD circuit board with 24 ADC and want to give it to DSP using USB (i.e., micro USB on 24 Bit ADC board and USB of DSP board) ? How should I achieve this with the ICs Mentioned in EEG Measurement section?

I want the Power circuit and every thing that is needed on a single board.

Also, I want to Design it for multi-channel EEG acquisition.

The reason I asked the question is to have a clear idea as of what is to be considered while designing.

 

So, it is my sincere request to you to help me achieve this. ( I have decided to Design this board within a board, This is my target as I want to work on the depths of DSP as soon as possible.).

Parents
  • 0
    •  Analog Employees 
    on Mar 13, 2017 6:40 PM

    Hi Sanket,

    This is a fairly loaded question, and one that doesn't have a simple answer. 

    Each SMD is going to have its own layout requirements and care should be taken to make sure all the datasheet specs are adhered to.  So I can't tell you specifically, because that comes down to each individual device.

    There is a great tool that you can use called ADIsimPower (Power Management Tools | Design Center | Analog Devices ), which can help design your power supply system.(things like rails, topologies, ripple, etc)

    I can tell you that there is no instrumentation amplifier that I am aware of that comes in 8-channels.  We do have dual instrumentation amplifiers, so you could look at the AD8224, AD8222, AD8426.

    There is a circuit note specific to ECG, I know it's not EEG but might be something worth looking at to see if the theory/concepts are helpful. (http://www.analog.com/en/design-center/reference-designs/hardware-reference-design/circuits-from-the-lab/CN0308.html#rd-…  )

    And there is also a section on the website for parts that are suited for EEG applications, and you can actually see some of the same instrumentation amplifiers I mentioned up above.  (EEG Measurement | Analog Devices )

    I hope this information helps you in designing your system.

    Cheers,

    Brandon

Reply
  • 0
    •  Analog Employees 
    on Mar 13, 2017 6:40 PM

    Hi Sanket,

    This is a fairly loaded question, and one that doesn't have a simple answer. 

    Each SMD is going to have its own layout requirements and care should be taken to make sure all the datasheet specs are adhered to.  So I can't tell you specifically, because that comes down to each individual device.

    There is a great tool that you can use called ADIsimPower (Power Management Tools | Design Center | Analog Devices ), which can help design your power supply system.(things like rails, topologies, ripple, etc)

    I can tell you that there is no instrumentation amplifier that I am aware of that comes in 8-channels.  We do have dual instrumentation amplifiers, so you could look at the AD8224, AD8222, AD8426.

    There is a circuit note specific to ECG, I know it's not EEG but might be something worth looking at to see if the theory/concepts are helpful. (http://www.analog.com/en/design-center/reference-designs/hardware-reference-design/circuits-from-the-lab/CN0308.html#rd-…  )

    And there is also a section on the website for parts that are suited for EEG applications, and you can actually see some of the same instrumentation amplifiers I mentioned up above.  (EEG Measurement | Analog Devices )

    I hope this information helps you in designing your system.

    Cheers,

    Brandon

Children
No Data