摘要
针对目前集成电路中对高精度基准电流模块的高度需求,通过采用曲率补偿技术,设计了一种低温度系数(TC)的电流基准源;电路基于0.6um BiCMOS工艺,采用独特的设计方法,很好地利用了NPN、PNPBJT的温度特性;通过Hspice仿真和测试结果表明,在-45～85℃的温度范围内,该电路输出的基准电流温度系数为84.4ppm/℃。
A new low temperature coefficient current reference with curvature compensation is presented.This current reference with special design of mechanism is fabricated using the 0.6μm BICMOS process, which utilizes the temperature-dependent currents generated from the NPN and PNP BJT devices. The simulation results for this circuit using Hspice show that the temperature coefficient of the current reference is 84.4pprn/℃ .
出处
《计算机测量与控制》
CSCD
北大核心
2009年第5期1013-1014,1018,共3页
Computer Measurement &Control
关键词
BICMOS
电流基准源
曲率补偿
温度系数
BiCMOS
current reference
curvature compensation
temperature coefficient
