基于MOS技术的基准源电路可以实现与带隙基准(BGR)电路相同的功能,得到与温度、电源电压无关的参考电压源或电流源。介绍了4种典型的基于MOS技术的基准源电路设计方法,对其原理和特点进行了讨论,并指出这些电路在设计和工艺实现中存在的问题。展望了基于MOS技术的基准源在低压、低功耗设计方面显示的BGR电路所不具备的应用前景。 A MOS-based reference source circuit can perform the same function as a bandgap reference (BGR) circuit, resulting in a voltage reference or current source that is independent of temperature and supply voltage. Four typical methods for designing reference circuits based on MOS technology are introduced, their principles and characteristics are discussed, and the problems existing in the design and realization of these circuits are pointed out. The prospect of application of BGR circuits based on MOS technology for low voltage and low power consumption design is prospected.