Ic emi filter with esd protection incorporating lc resonance tanks for rejection enhancement

An integrated circuit (IC) electromagnetic interference (EMI) filter with electrostatic discharge (ESD) protection incorporating inductor-capacitor (LC) resonance tanks comprising:

• a first diode with a first anode thereof coupled to a ground, and said first diode induces a first parasitic capacitance between a first cathode of said first diode and said first anode;
• an inductor having a series resistance and coupled to said first cathode;
• a second diode with a second anode thereof coupled to said ground, and said second diode induces a second parasitic capacitance between a second cathode of said second diode and said second anode, and said second cathode is coupled to a first port;
• a first passive element coupled between said second cathode and said inductor;
• a third diode with a third anode thereof coupled to said ground, and said third diode induces a third parasitic capacitance between a third cathode of said third diode and said third anode, and said third cathode is coupled to a second port;
• and
• a second passive element coupled between said third cathode and said inductor and cooperating with said first passive element and said inductor to induce a fourth parasitic capacitance between said first anode and a node among said first passive element, said second passive element, and said inductor.