ADS1299-4: ADs1299-4

MAHESWARI VAYARA

Prodigy 180 points

Part Number: ADS1299-4
Other Parts Discussed in Thread: ADS1299

Hi team

I am working of the EEG(AFE) ADS1299

I am using the signal conditioning circuit preamplification stage before the ADS1299.

As i am using the single channel (IN1P) as data, SRB, BIAS electrodes from the open BCI captured the Data

But i have a question when i use the Instrumentation amplifier for the +Ve (IN+) I will connect the electrode for the Negative of the Instrumentation amplifier I will use the SRB is it correct

If yes what is the reference voltage on the SRB pin.

over 4 years ago

0 ChienChun Yang over 4 years ago

TI__Mastermind 19815 points

May I ask what do open BCI and BCI mean?

You may want to refer to data sheet https://www.ti.com/lit/ds/symlink/ads1299.pdf?ts=1650316454081&ref_url=https%253A%252F%252Fwww.google.com%252F

Page 19 show the MUX is controlled by at least 3 signals -

Page 20 tells what registers and register values need to be set to meet your needs-

SRB1 is controlled by Register MISC1: Miscellaneous 1 Register (address = 15h)

Do you have/use reference electrode?

You may want to refer to page 67 and use it as reference/guideline for your application -

Thanks

Data converters

Data converters forum

ADS1299-4: ADs1299-4