摘要
采用4μm 40 V BJT商用工艺设计了一种基于JFET差分输入对的2.5 V电压基准源.内部结构包括JFET差分输入对、恒流源、PTAT电流源、运放、电阻分压器、短路保护.仿真结果表明本设计能够满足5 V^30 V宽电压范围、车规级温度范围应用,并具有低噪声、低温漂、低温度非线性等卓越性能.
Fabricated by 4μm 40 V BJT commercial technology,a designed voltage reference based on JFET differential input pair outputs 2.5 V steadily,which is comprised of JFET differential input pair,constant current source,PTAT current source,op-amp,resistor divider,short-circuited protection.Simulation results show that the design lends itself well to a wide range of voltage application(5 V^30 V)and vehicle-level temperature application.Besides,low noise,low temperature drift,low temperature nonlinearity could also be expected.
作者
李飞
陈娜
LI Fei;CHEN Na(China Electronic Technology Conglomeration No.58 R&.D Institute,Wuxi 214035,China;.2 Chongqing Academy of Metrology and Quality Inspection,Chongqing 401123,China)
出处
《微电子学与计算机》
北大核心
2020年第4期80-85,共6页
Microelectronics & Computer
关键词
JFET差分输入对
低噪声
低温漂
低温度非线性
JFET differential input pair
low noise
low temperature drift
low temperature nonlinearity
