Patent ID: 7787227

Claim:
An electrostatic discharge (ESD) protected integrated circuit comprising: a transmit circuit having an output coupled to an integrated circuit pad; an ESD protect block; and an ESD clamp circuit; wherein a first terminal of the ESD protect block couples to the integrated circuit pad, and a second terminal of the ESD protect block couples to a first terminal of the ESD clamp circuit, and a second terminal of the ESD clamp circuit couples to ground, and a third terminal of the ESD protect block couples to ground; and wherein the ESD protect block includes one or more diodes coupled between the first and second terminals, and wherein the ESD protect block comprises: a first diode, wherein an anode of the first diode couples to the first terminal of the ESD protect block, and a cathode of the first diode couples to the second terminal of the ESD protect block; and a first capacitor, wherein a first terminal of the first capacitor couples to the second terminal of the ESD protect block, and a second terminal of the first capacitor couples to the third terminal of the ESD protect block.