Low-power biopotential front end
Design one channel of a low-power front end for biopotential signals from dry electrodes. State your assumptions for signal level, bandwidth, electrode impedance, DC offset and power per channel (for example 10–100 µV, 0.5–100 Hz, up to 1 MΩ, a few hundred mV, about 1 mW). Then explain how it scales to many channels.
| Level | ●●● onsite design / senior |
| Track | General board |
| Really testing | Gain budget, noise vs source impedance, and scaling. |
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