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.).
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.