主权项 |
1. A reference voltage generating circuit for generating a reference voltage, comprising:
a bandgap circuit, comprising:
a current mirror circuit, for generating a first current; andan output circuit, for generating a reference current based on the first current; and a compensation circuit, with the bandgap circuit coupled in parallel at a combination node for generating a compensation current, wherein the compensation current is smaller than the reference current, the reference current has a first temperature coefficient and the compensation current has a second temperature coefficient that is inverse to the first temperature coefficient, the reference current and the compensation current are combined at the combination node, such that an absolute value of a temperature coefficient of the reference voltage at the combination node is smaller than an absolute value of the first temperature coefficient and an absolute value of the second temperature coefficient. |