An on-chip true noise generator including an embedded noise source with a low-voltage, high-noise zener diode(s), and an in-situ close-loop zener diode power control circuit. The present invention proposes the use of heavily doped polysilicon and silicon p-n diode(s) structures to minimize the breakdown voltage, increasing noise level and improving reliability. The present invention also proposes an in-situ close-loop zener diode control circuit to safe-guard the zener diode from catastrophic burn-out.

A combo circuit with electrostatic discharge protection includes a pulse width modulation integrated circuit and a power integrated circuit. The pulse width modulation integrated circuit has an electrostatic discharge protection circuit and the electrostatic discharge protection circuit is installed between a source of the power integrated circuit and a reference ground potential of the combo circuit.

A combo circuit with electrostatic discharge protection includes a pulse width modulation integrated circuit and a power integrated circuit. The pulse width modulation integrated circuit has an electrostatic discharge protection circuit and the electrostatic discharge protection circuit is installed between a source of the power integrated circuit and a reference ground potential of the combo circuit.

According to one embodiment, an input circuit is provided that inputs a voltage to each of drive terminals of a pair of differential transistors constituting a differential pair. The input circuit includes: a first input wiring section to which a first voltage is applied; a second input wiring section to which a second voltage; a first output wiring section to which a voltage is output to one of the pair of differential transistors; a second output wiring section to which a voltage is output to the other of the pair of differential transistors; a voltage generation circuit section that generates a third voltage based on at least one of the first voltage and the second voltage; a first transistor disposed between the first input wiring section and the first output wiring section; and a second transistor disposed between the second input wiring section and the second output wiring section.

According to one embodiment, an input circuit is provided that inputs a voltage to each of drive terminals of a pair of differential transistors constituting a differential pair. The input circuit includes: a first input wiring section to which a first voltage is applied; a second input wiring section to which a second voltage; a first output wiring section to which a voltage is output to one of the pair of differential transistors; a second output wiring section to which a voltage is output to the other of the pair of differential transistors; a voltage generation circuit section that generates a third voltage based on at least one of the first voltage and the second voltage; a first transistor disposed between the first input wiring section and the first output wiring section; and a second transistor disposed between the second input wiring section and the second output wiring section.

A combo circuit with electrostatic discharge protection includes a pulse width modulation integrated circuit and a power integrated circuit. The pulse width modulation integrated circuit has an electrostatic discharge protection circuit and the electrostatic discharge protection circuit is installed between a source of the power integrated circuit and a reference ground potential of the combo circuit.

A combo circuit with electrostatic discharge protection includes a pulse width modulation integrated circuit and a power integrated circuit. The pulse width modulation integrated circuit has an electrostatic discharge protection circuit and the electrostatic discharge protection circuit is installed between a source of the power integrated circuit and a reference ground potential of the combo circuit.

According to one embodiment, an input circuit is provided that inputs a voltage to each of drive terminals of a pair of differential transistors constituting a differential pair. The input circuit includes: a first input wiring section to which a first voltage is applied; a second input wiring section to which a second voltage; a first output wiring section to which a voltage is output to one of the pair of differential transistors; a second output wiring section to which a voltage is output to the other of the pair of differential transistors; a voltage generation circuit section that generates a third voltage based on at least one of the first voltage and the second voltage; a first transistor disposed between the first input wiring section and the first output wiring section; and a second transistor disposed between the second input wiring section and the second output wiring section.

According to one embodiment, an input circuit is provided that inputs a voltage to each of drive terminals of a pair of differential transistors constituting a differential pair. The input circuit includes: a first input wiring section to which a first voltage is applied; a second input wiring section to which a second voltage; a first output wiring section to which a voltage is output to one of the pair of differential transistors; a second output wiring section to which a voltage is output to the other of the pair of differential transistors; a voltage generation circuit section that generates a third voltage based on at least one of the first voltage and the second voltage; a first transistor disposed between the first input wiring section and the first output wiring section; and a second transistor disposed between the second input wiring section and the second output wiring section.