摘要
提出了一种采用新型曲率补偿技术的CMOS带隙基准源。该电路利用BJT电流和电压的指数关系,得到了高阶曲率补偿的基准电压。在-55^+125℃温度范围内,通过HSPICE仿真验证,基准电压的温度系数不到4ppm/℃。在此基础上,实现了可调节的基准电压输出。
A novel curvature compensated CMOS bandgap reference is proposed, which could generate a higherorder curvature compensated reference voltage with the exponential feature of BJT. Simulated in HSPICE, the bandgap reference source exhibits a temperature coefficient lower than 4-ppm/℃ in the temperature range from -55 ℃ to 125 ℃, and two adjustable reference voltages are also obtained.
出处
《微电子学》
CAS
CSCD
北大核心
2007年第1期101-104,共4页
Microelectronics
关键词
CMOS
温度补偿
带隙基准源
温度系数
CMOS
Temperature compensation
Bandgap reference source
Temperature coefficient
