Integrated circuit with device for protection against electrostatic discharges

An integrated circuit comprising:

• a substrate of semiconductive material;
• a first circuit environment made from said substrate, comprising a first pair of power supply terminals to receive a first power supply voltage applicable between said terminals and also comprising an output terminal;
• a second circuit environment made from said substrate, comprising a second pair of power supply terminals, distinct from said first pair of terminals, to receive a second power supply voltage applicable between terminals of said second pair and also comprising an input terminal electrically coupled with said output terminal;
• and
• a resistive device operatively connected between said input and output terminals for protection against electrostatic discharges,
• wherein said resistive device comprises a resistor connected in series between said output terminal and said input terminal.

An integrated circuit comprising:

• a substrate of semiconductive material;
• a first circuit environment made from said substrate, comprising a first pair of power supply terminals to receive a first power supply voltage applicable between said terminals and also comprising an output terminal;
• a second circuit environment made from said substrate, comprising a second pair of power supply terminals, distinct from said first pair of terminals, to receive a second power supply voltage applicable between terminals of said second pair and also comprising an input terminal electrically coupled with said output terminal;
• and
• a resistive device operatively connected between said input and output terminals for protection against electrostatic discharges,
• wherein at least one of the first and second circuit environments also comprises a structure for protection from electrostatic discharges connected in parallel between said pair of power supply terminals.

An integrated circuit comprising:

• a substrate of semiconductive material;
• a first circuit environment made from said substrate, comprising a first pair of power supply terminals to receive a first power supply voltage applicable between said terminals and also comprising an output terminal;
• a second circuit environment made from said substrate, comprising a second pair of power supply terminals, distinct from said first pair of terminals, to receive a second power supply voltage applicable between terminals of said second pair and also comprising an input terminal electrically coupled with said output terminal;
• and
• a resistive device operatively connected between said input and output terminals for protection against electrostatic discharges,
• wherein said resistive device also includes a first integrated condenser connected between said input terminal and one of said terminals of said second pair of power supply terminals.

An integrated circuit comprising:

• a substrate of semiconductive material;
• a first circuit environment made from said substrate, comprising a first pair of power supply terminals to receive a first power supply voltage applicable between said terminals and also comprising an output terminal;
• a second circuit environment made from said substrate, comprising a second pair of power supply terminals, distinct from said first pair of terminals, to receive a second power supply voltage applicable between terminals of said second pair and also comprising an input terminal electrically coupled with said output terminal;
• and
• a resistive device operatively connected between said input and output terminals for protection against electrostatic discharges,
• wherein said resistive device also includes a first integrated diode connected between said input terminal and one of said terminals of said second pair of power supply terminals in an inverse polarisation configuration with respect to said second power supply voltage.