A device for sensing a physiological signal while stimulation therapy is being provided wherein the stimulation therapy involves application of a stimulation signal comprising a stimulation phase and a passive or active recharge phase, comprising: a sensing electrode; a blanking switch; an electrically conductive pathway connected between the sensing electrode and a blanking switch; a sensing amplifier; a controller configured to maintain the blanking switch in a non-conducting state during a stimulation phase of a stimulation signal and to maintain the blanking switch in a conducting state during at least a portion of the recharge phase.