Re: [Openeeg-list] Surface mount INA114 design

[Joerg H. <in...@jh...>]

Hi,

Andreas Robinson wrote:

[power supply]
>> That is not so nice. What  do you use?
> The plan is battery-only, either 2x1.2V + stepup converter, or 9V/12V.

With enough Vcc voltage the TLC4502 should be no problem.

...
>> What plans do you have for the digital part? MSP430?
> 
> 
> I'm not sure an MSP430 can handle the downsampling filters for eight 
> channels....?
> The requirements are about 16 MACs (multiply and accumulate) per filter, 
> or 16 * 8 * 2048 = 262K MACs per second. Multiplication must be 16 x 16 
> bits or better and the accumulator should have more than 32 bits, eg 40 
> bits.

So you think you need a signal processor?

BTW: What about your monopolar EEG amplifier based on the biosemi design?
Is it not a better choice for so many channels (8)?

Regards,

	Joerg