A Design of High Precise Self-Bias Bandgap Reference Voltage Source
Zhou Wei-jiang · Journal of Hangzhou Dianzi University · 2007
According to the integrate circuit design requirements of bandgap voltage source with low power,high-line regulation and high-PSRR,a new structure of highly precise self-bias bandgap voltage souce with the CMOS technic was designed.This structure uses resistors on its direct current path to realize self-bias voltage and uses three-stage cascode bias voltage to realize the matching of the current and the equalization of the voltage.This structure has a static electricity of 13μA,a temperature coefficient of 31 ppm/K,a high-line regulation of 22.7μV/V and a high PSRR of 93.7 dB.