Design Optimization for Integrated Neural Recording Systems

Abstract

Power and chip area are the most important param- eters in designing a neural recording system in vivo. This paper reports a design methodology for an optimized integrated neural recording system. Electrode noise is considered in determining the ADC’s resolution to prevent over-design of the ADC, which leads to unnecessary power consumption and chip area. The optimal transconductance and gain of the pre-amplifiers, which minimizes the power–area product of the amplifier, are mathematically derived