本文设计了采用曲率补偿,具有较高的温度稳定性的高精度带隙基准电压源。设计中没有使用运算放大器,电路结构简单,且避免运算放大器所带来的高失调和必须补偿的缺陷。此外电路又采用了内部负反馈回路,使基准电压源工作一个稳定的电压下,从而提高基准电压源的电源抑制比(PSRR)。文中最后给出了此基准电压源的各种性能的仿真波形。 In this paper, a high precision bandgap voltage reference with curvature compensation and high temperature stability is designed. The design does not use an op amp, the circuit structure is simple, and to avoid the op amp brought high offset and must compensate for defects. In addition, the circuit uses an internal negative feedback loop, the reference voltage to work a stable voltage, thereby increasing the reference voltage source power supply rejection ratio (PSRR). Finally, the paper gives the simulation of various performance of the reference voltage waveform.