Application specific integrated circuit for physiological monitoring

Abstract From the Canadian patent

Abstract of the Disclosure An application specific integrated circuit (ASIC) for physiological monitoring that has multiple inputs and outputs for flexible system architecture in which multiple ASICs are easily coupled together to expand the number of channels being monitored. Each ASIC has multiple inputs that may be coupled to the patient and analog expansion inputs to accept signals from other ASICs. A buffered version of the patient inputs allows signals to be transferred to other ASICs. A lead summing network under control of lead select and system configuration lines sums the patient, inputs, the expansion inputs or both, to produce various signal leads. Multiple ASICs are easily …