Patent ID: 6959213

Claim:
An integrated circuit to process at least one signal of signals of interest, the integrated circuit comprising: at least two leads to conduct the signals of interest, wherein a first lead of the at least two leads includes an atrial tip conductor and an atrial ring conductor, and wherein a second lead of the at least two leads includes a ventricular tip conductor and a ventricular ring conductor; an atrial sense amplifier coupled to the first lead of the at least two leads; a ventricular sense amplifier coupled to the second lead of the at least two leads; an atrial ring-to-can intracardiac electrogram amplifier coupled to the first lead of the at least two leads; a ventricular ring-to-can intracardiac electrogram amplifier coupled to the second lead of the at least two leads; an impedance sensor coupled to one of the at least two leads a switch bank coupled to the atrial sense amplifier and the ventricular sense amplifier, wherein the switch bank includes a plurality of switching devices; and first and second programmable gain amplifiers coupled to the switch bank.