ADS1299EEGFE-PDK: ADS1299EEGFE-PDK

Junzhe Zhang

Part Number: ADS1299EEGFE-PDK

Tool/software:

Hi,

When I was testing, there was always an offset between the waveform I measured and the waveform sent by the function generator. I want to know, when I use the CH1 channel, I connect J6's 36 to my positive input and J6's 34 to my negative input. How should I set JP25? I don't need any bias electrode at present.

Many thanks
Junzhe

over 1 year ago

0 Ryan Andrews over 1 year ago

TI__Guru 66816 points

Hi Junzhe,

JP25 is not needed for this test. However, the negative input from your function generator must also be shared with analog ground on the EVM.

Regards,

Ryan

0 Junzhe Zhang over 1 year ago in reply to Ryan Andrews

Prodigy 140 points

Hi Ryan,

Thanks for your reply. So you mean I need to remove all the jumper caps on JP25? Because when I received the test board, there were 3 jumper caps on JP25. I connected the negative terminal of the function generator to IN1N, which is the same as my design.

Many thanks

Junzhe

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ADS1299EEGFE-PDK: ADS1299EEGFE-PDK