Wireless ECG in implantable devices

An implantable medical device configured to be coupled to electrodes suitable for sensing a cardiac signal approximating a surface electrocardiogram (ECG), the implantable medical device comprising:

• a command receiver configured to receive an ECG acquisition command;
• a sensing circuit configured to be programmed in response to the ECG acquisition command to sense the cardiac signal approximating the surface ECG, the sensing circuit including a frequency response programmable for at least a surface ECG pass band selectable for sensing the cardiac signal approximating the surface ECG and an intracardiac electrogram pass band selectable for sensing an intracardiac electrogram;
• and
• a sense interface configured to be programmed in response to the ECG acquisition command to provide electrical connections for sensing the cardiac signal approximating the surface ECG, the electrical connections connecting the sensing circuit to the electrodes.