522 brainamp-ac-coupled-lna

522 : brainamp-ac-coupled-lna

Design render

How it works

This is a low noise amplifier to amplify EEG waves (signals) generated by your brain, removing AC coupled noise and not adding too much noise of it's own.

How to test

Connect an electrode (or a 100 milli-amp sine wave to EEG_IN). Connect a similar less noisy wave to EEG_REF, and you should see an amplified output for low Hz (1-100) frequencies.

External hardware

If you actually want to attach this to your head, might need silver coated dry EEG electrodes.

IO

#InputOutputBidirectional
0
1
2
3
4
5
6
7

Analog pins

uaPCB PinInternal indexDescription
0B06EEG_IN
1B17EEG_REF
2B39VOUT

Chip location

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