带隙式基准源是七十年代初提出的新型基准源,它的问世使基准器件的指标产生了新的飞跃.众所周知,基准源是许多电气系统中的核心,尤其对高精度、高分辩率的D/A、A/D转换器而言,稳定的基准源更是不可缺少.在国外,分辩率在12位以上的D/A,A/D转换器的基准源几乎都采用带隙式基准源或是次表面隐埋齐纳技术的基准源.国外,自1971年R.J.Widlar提出的实施带隙基准最早方案以来,已有不少半导体研究人员转向对新型基准源的探讨和研究.由 Band gap reference is a new reference source proposed in the early 1970s, it is the advent of the standard device reference mark a new leap forward.As we all know, the reference source is the core of many electrical systems, especially for high-precision, high resolution Of D / A, A / D converter, a stable reference source is indispensable.In foreign countries, the resolution of more than 12 D / A, A / D converter reference sources are almost all band gap Reference source or sub-surface buried Zener technology reference source abroad, since 1971 RJWidlar proposed the implementation of the earliest band-gap benchmark program, there have been many semiconductor researchers turned to the new reference source of research and research by