Patent ID: 11887982
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An integrated circuit, comprising:
a power supply terminal;
a reference terminal;
a first signal terminal;
a second signal terminal;
a first protection device coupled between the first signal terminal and the power supply terminal;
a second protection device coupled between the first signal terminal and the reference terminal;
a third protection device coupled between the second signal terminal and the power supply terminal;
a fourth protection device coupled between the second signal terminal and the reference terminal; and
a MOS protection transistor having a first electrode coupled to said signal terminal and a second electrode coupled to said second signal terminal, wherein a gate of the MOS protection transistor is indirectly coupled to the reference terminal, and a substrate of the MOS protection transistor is coupled to the reference terminal via a first common resistor.