Design of a Low Temperature Floats Bandgap Reference with High Precision
XU Yan-yan, RF Circuit · Journal of Hangzhou Dianzi University · 2013
This paper takes the presently band-gap reference technique as foundation,a high precision and low temperature floats bandgap reference with multi-output is designed,the voltage reference is acquired together with the self-biased cascode current mirror structure and setup circuit and curvature compensation circuit.Firstly,the paper describes the characteristics of traditional band-gap reference;Then the design process of each part circuit are described.According to the simulation results,over the temperature range of-30110℃ the temperature coefficient is 2.36×10-6V/℃ and the PSRR is-85.6dB at low frequency.The designed voltage reference can be widely used in power management chip and so on.