A multi-channel multi-mode physiological signals acquisition and analysis platform

With the recent evolution of medical device developments, physiological signal acquisition system is widely used in health monitoring, brain machine interface, and neural prosthesis, etc. In this paper, a multi-channel multi-mode biomedical signal acquisition and analysis platform is designed and implanted. The platform includes a customized low-distortion, high signal-to-noise ratio (SNR) analog to digital converter (ADC), and a field-programmable gate array (FPGA) with an embedded soft-core of 32-bit RISC processor. A multimode ADC was developed to meet the resolution and bandwidth requirement of different physiological signals. The soft-core and its corresponding software was designed and implemented to provide a versatile platform for different bio-medical applications. The integration of multi-mode data converter and signal processing platform enable the turnkey solution to develop different bio-medical applications such as on-line seizure detection, heart rate monitor, physiological signals recorder, etc.