›› 2010, Vol. 23 ›› Issue (8): 55-.

• Articles • Previous Articles     Next Articles

A High Precision Bandgap Reference

 DUAN Wen-Yong, HE Xiao-Xiong   

  1. (College of Electron Science and Applied Physics,Hefei University of Technology,Hefei 230009,China)
  • Online:2010-08-15 Published:2011-03-28


The bandgap reference circuit in analog and mixed-circuit system is a very important module.A high-precision bandgap reference tube is designed in this paper.On the basis of conventional positive temperature coefficient current,the resistance of two different materials is added to achieve the benchmark second-order band-gap temperature compensation.The use of folding with feedback bias cascade op-amp in band-gap reference circuit achieves a very high accuracy and temperature stability.

Key words: bandgap reference;offset voltage;second-order temperature compensation;start up

CLC Number: 

  • TN702