A neural recording system for monitoring shark behavior

A neural recording system for monitoring the behavior of sharks is presented. The system consists of an electrode array made of silicon neuroprobes that interface with a flexible parylene cable that connects the electrode array to the electronics to process the neural signals, and a wireless transmission system that transmit the processed signals to the external world. The electronics include amplifiers, multiplexers, analog-to-digital converters, a FPGA, a telemetry chip. The results of the chip designs of amplifier are reported. The challenges in realizing a miniaturized, low power and high density (more than 100 recording sites) recording system are outlined. The choice of architecture and the tradeoffs involved are described