An ultra-low-power low-noise amplifier in 45nm SOI CMOS for portable EEG applications

There is a great demand for technologies that enable researchers to be able to measure “real-world” brain activity, i.e., activity recorded outside a clinical setting, such as would be required for portable brain-machine-interfaces (BMI). Presently, power is a major limiting factor to be able to conduct experiments outside a laboratory setting, either from restrictions due to the size and weight of the batteries or by requiring subjects to maintain and replace batteries, drastically limiting the usability of the systems.