A Low-Noise, Modular, and Versatile Analog Front-End Intended for Processing In Vitro Neuronal Signals Detected by Microelectrode Arrays

Figure 5

(a) Picture of the realized preamplifier board (red arrow) and adapter board (yellow arrow) which organizes output signal in a 64-pin socket. (b) Picture of the realized filter amplifier, constituted of two identical stacked 30-channel PCBs, with adapters boards for cables plug-in on both sides. (c) Assembly of the board in the experimental setup. The preamplifier (red arrow) contacts MEA electrodes inside a custom-built chamber and is protected against high humidity level through a PLA cover. Signals are sent to the adapter on the top plate (yellow arrow) and then to the filter amplifier (orange arrow) through the shielded cable.

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