Design of bandgap reference voltage based on digital trimming
FU Ying
LIU Bin
Abstract：In different process corners of the same process, output voltage of bandgap reference will have a large change.In order to reduce the affect induced by the process corners change, digital trimming technology is introduced, which trims the resistance that influences the output voltage of bandgap reference to ensure that the voltage reference of different process corners can be adjusted to the ideal value by trimming.Simulation result based on HHNEC 0.35μm BCD process indicates that the temperature coefficient of the trimmed bandgap refer-ence is 6 ppm/℃in various technique corners, ranging from -40 ℃to 85 ℃.
Keywords：bandgap referenceprocess cornerdigital trimmingtemperature coefficient
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 325-329,384 )