Bandgap circuit with temperature correction

A method, comprising:

• receiving an output reference voltage;
• comparing, using a first compare circuit, a first voltage at a first current node of a first transistor with a first voltage threshold, wherein the first voltage threshold is based, at least in part, on the output reference voltage;
• and
• removing a first current from the first current node of the first transistor to correct a first curvature of the output reference voltage for low temperatures based, at least in part, on said comparing a first voltage.

A method, comprising:

• receiving an output reference voltage;
• comparing, using a compare circuit, a voltage at a current node of a transistor with a voltage threshold, wherein the voltage threshold is based, at least in part, on the output reference voltage;
• and
• injecting a current into the current node of the transistor to correct a curvature of the output reference voltage for high temperatures based, at least in part, on said comparing a voltage.

A circuit, comprising:

• a bandgap circuit configured to provide an output reference voltage, wherein the bandgap circuit includes a first temperature compensation circuit, a second temperature compensation circuit, and an amplifier, and wherein the first temperature compensation circuit is coupled to a first input of the amplifier and the second temperature compensation circuit is coupled to a second input of the amplifier;
• a first compare circuit coupled to the first temperature compensation circuit and configured to remove a first current from the first temperature compensation circuit to correct a first curvature of the output reference voltage for low temperatures;
• and
• a second compare circuit coupled to the second temperature compensation circuit and configured to inject a second current into the second temperature compensation circuit to correct a second curvature of the output reference voltage for high temperatures.