ADS1298ECG board: does it provide AVDD and AVSS to the D-Sub Connectors and then support active electrode?

qi wang

Intellectual 480 points

Hi TI experts:

A question about the ECG board :

In the manual, I found the board can get sigal from the D-Sub Connectors which are conneted to 10 lead electordes.

When I move my hands, the cable moves and signal quality is greatly impacted.

So I need to use the active electrode in the evaluation for better signal quality.

As I know, the active electrode shoud include an amplifier as a buffer, so AVDD and AGND are needed.

But it seems that the ECG board only extrally provides AGND as cable shielding signal to the D-Sub Connectors.

Can you kindly tell me how to connect the ECG board via D-Sub Connectors to the active electrode?

Appreciated!!!

Best,

over 9 years ago

0 Amy Schnoor over 9 years ago

TI__Mastermind 18285 points

Qi,

I'm moving your post to the correct forum.

0 Brian Pisani over 9 years ago

TI__Mastermind 38745 points

Hey Qi,

Unfortunately there are no supply connections to the cable connector on the EVM, but we do provide a footprint for a generic amplifier to be used as a cable shield (U2). I'm not quite sure what is required to remove motion artifacts or if you could do this with U2 as it is placed on the board, but I thought I'd at least suggest it.

Regards,
Brian Pisani

Data converters

Data converters forum

ADS1298ECG board: does it provide AVDD and AVSS to the D-Sub Connectors and then support active electrode?