低功耗高精度基准源研究综述

Review of low power and high precision reference

本文介绍了基准源电路的发展脉络及研究进展.按照电路功能进行分类,基准源可以分为基准电压源和基准电流源.对于基准电压源,分别对于带隙基准源、混合基准源和CMOS基准源三个类别的发展历程及最新研究成果进行了总结和讨论;分析了这些电路在降低功耗、提高精度方面的创新之处、优点和存在的问题.对于基准电流源,主要讨论了电流直接补偿以及由电压源得到电流源两种设计方法.基于以上讨论,对于基准源未来的发展前景进行了展望.

This paper introduces the development of reference source circuit and its research progress.According to the circuit function,the reference source can be divided into the reference voltage source and the reference current source.For reference voltage sources,the development history and latest research results of bandgap reference source,hybrid reference source and CMOS reference source are summarized and discussed,and the innovations,advantages and problems of these circuits in reducing power consumption and improving accuracy are analyzed.For reference current source,two design methods,direct current compensation and current source derived from voltage source,are discussed.Based on the above discussion,the future prospects of reference sources are prospected.