Patent ID: 8879230

Claim:
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; a first inductor having a first 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; a second inductor having a second series resistance and coupled to said second cathode; and a first passive element coupled between said first and second inductors, a first node between said first passive element and said first inductor coupled to a first port, a second node between said first passive element and said second inductor coupled to a second port, and said first inductor, said second inductor, and said first passive element induce a third parasitic capacitance between said first node and said first anode and a fourth parasitic capacitance between said second node and said second anode.