摘要
根据不同直流电压基准源芯片的温度漂移互相独立的特点,研究单个电压基准源芯片输出的温度特性,提出一种利用平均值电路降低基准电压温度漂移系数的方法。实验结果表明:温度系数最优为4.5μV/℃的4个基准源芯片,经过平均电路融合输出后,温度系数减小到2.46μV/℃,可以有效地降低直流电压基准的温度漂移系数。
A method of improving and verifying the temperature drift coefficient of reference voltage based on average value circuit is proposed. It shows that four reference source chips which have the best temperature coefficient 4.5μV/℃ reduce to 2.46μV/℃ after average circuit fusing output. Experimental results show that this method efficiently reduces the temperature drift coefficient of reference voltage.
出处
《传感器与微系统》
CSCD
北大核心
2012年第8期66-68,共3页
Transducer and Microsystem Technologies
关键词
电压基准源
低温漂
平均值电路
reference source of voltage
low temperature drift
average value circuit
