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

Figure 4

Scheme of the assembled setup showing the disposition of the custom preamplifier board (inside a PMMA-made MEA chamber), the custom filter amplifier board, the A/D device, and the power supply (Multi Channel Systems GmbH). The preamplifier PCB contacts the MEA pads by means of gold spring contacts (schematized by the gold arrows).