Patent ID: 7880340

Claim:
An integrated circuit comprising: a radiation-triggered shutdown circuit responsive to a received radiation dose being larger than a predetermined radiation dose to render the integrated circuit inoperable; wherein the radiation-triggered shutdown circuit further comprises a detector circuit configured to provide a detect signal having a first value in response to the received radiation dose being below the predetermined radiation dose and a second value in response to the radiation dose being above the predetermined radiation dose; and wherein the detector circuit comprises, a first transistor coupled between a first power supply and a first node, a gate of the first transistor being coupled to the first node; a second transistor coupled between a second node and ground, a gate of the second transistor being coupled to the first node; a first resistor coupled between the first node and ground; and a second resistor coupled between the first power supply and the second node; and wherein the second node supplies the detect signal of the detector circuit.