#$%^&*AU2010201093B220140313.pdf#####SYSTEM AND METHOD FOR RETURN ELECTRODE MONITORING ABSTRACT A detection circuit (22) for return electrode monitoring is disclosed. The detection circuit (22) includes a transformer (43) operatively coupled to a pair of split electrode pads (41, 42), wherein the transformer (43) is configured to transceive a return electrode sense signal. The detection circuit (22) also includes a first switch (60) coupled to the 5 transformer and a neutrally-referenced second switch (62), wherein the first switch (60) and the second switch (62) are disposed on a single die. The detection circuit (22) further includes an operational amplifier (68) coupled to the first switch and the neutrallyreferenced second switch (62). The operational amplifier (68) is configured to subtract a noise signal from the return electrode sense signal. 2599739I.DOC IRN: 9453842/3 LO CD *4 C)% UUJ 00 = LU C~CL U-ii -J C) Q- LUCDC
