Tool/software:
Design Requirements:
1. We used 2 IC's of ADS1299. And here, 8 Channels for EEG(Unipolar) and 8 channel for EMG (Bipolar).
2. Both IC can be configured to either 0(AVSS) to 5v(AVDD) or to +2.5(AVDD) to -2.5v(AVSS) using jumper settings.
Questions:
1. For EEG Unipolar configuration, SRB1 has taken as Reference electrode (All the Negative pins are internally shorted to SRB1 pin), SRB2 is NC and BIAS_OUT of both ADS1299 has shorted and taken as Ground electrode.
2. For EMG Bipolar configuration, Corresponding Negative electrodes are taken as Reference Electrodes. SRB1 and SRB2 are NC. Kindly check the below reference figure whether design plan is fine or not? And kindly check that handling SRB pins and BIASOUT pins in both ICs are appropriate?
2. I have given options to configure both 2.5v to -2.5 and 0 to 5v for AVDD to AVSS. So in the final design which can be finalized. Is that ok to give same supply for both ICs or i need to give different supply for each IC. Please give some suggestion.
