摘要
介绍一种采用双极工艺适用于低压差线性稳压源的带隙基准设计,基准具有使能电路,有效减小锁定状态下的静态功耗,锁定状态下静态电流为34.419pA.针对低压差线性稳压源的应用环境要求,对基准工作温度范围内进行分段曲率补偿技术以降低其温度漂移.-40℃～140℃温度范围内基准电源的温度系数达到25.7ppm/℃.该基准无运放,以降低运放失调电压的影响,其电源抑制比为-80.33dB.电源电压在2.5V～6V变化时,基准大小变化0.3mV.
This paper presents a bandgap reference in bipolar process which is used in Low- dropout linear regulator. The reference has an enable circuit to reduce the power consumption in shutdown mode. When the circuit is shutdown, the current to ground is 34. 419pA. Considering the Low--dropout linear regulator＇s application environment, a piecewise curvature--corrected technology is used for reducing the voltage drift when the chip temperature is high. The PPM of this circuit is 25.7/℃ when the temperature is switch form --40℃ to 140℃. The reference is designed without any operational amplifier to reduce the impact of the Op--Amp＇s offset voltage and the PSRR of this bandgap reference is --80. 33dB. The reference skews 0. 3mV under the supply voltage ranging from 2. 5V to 6V.
出处
《微电子学与计算机》
CSCD
北大核心
2013年第4期75-78,共4页
Microelectronics & Computer
作者简介
姜树法 男，（1987-），硕士研究生．研究方向为模拟集成电路芯片设计．
张国俊 男，（1960-），教授．研究方向为新型功率半导体器件与集成电路、系统设计．
