← 返回 JSSC 论文列表JSSC 2011第11期Analog Circuits0.16μmBandgap Reference
A Single-Trim CMOS Bandgap Reference With a Inaccuracy of 015 From 40 C to 125 C
一种仅需单次修调即可在-40°C至125°C范围内实现0.15%精度的CMOS带隙基准源。
0.15% inaccuracy, 55μA@1.8V, 0.12mm²
CMOS带隙基准单次修调高精度曲率校正斩波技术
▸单次修调实现高精度
▸采用斩波和高阶曲率校正技术消除非PTAT误差
▸残余PTAT误差通过室温单次修调消除
Abstract
A CMOS bandgap reference with an inaccuracy of
0.15% (3 )f r o m 40 C to 125 C is presented. In contrast
to prior art, it requires only a single trim to achieve this level of
precision. A detailed analysis of the various error sources is pro-
vided, and techniques to reduce them are discussed. The prototype
bandgap reference draws 55
A from a 1.8 V supply, and occupies
0.12 mm in a 0.16 m CMOS process. Experimental results from
two runs show that, with the use of chopping and higher-order
curvat