哈尔滨工业大学学报（英文版）2010，Vol.17Issue(4)：497-500,4.
A band-gap voltage reference for interface circuit of microsensor
A band-gap voltage reference for interface circuit of microsensor
CAO Yi-jiang 1XIAO Fei 1ZHANG Er-dong1
作者信息
摘要
Abstract
A high performance CMOS band-gap voltage reference circuit that can be used in interface integrated circuit of microsenser and compatible with 0.6 μm (double poly) mix process is proposed in this paper.The circuit can be employed in the range of 1.8-8 V and carry out the first-order PTAT (proportional to absolute temperature) temperature compensation.Through using a two-stage op-amp with a NMOS input pair as a negative feedback op-amp,the PSRR (power supply rejection ratio) of the entire circuit is increased,and the temperature coefficient of reference voltage is decreased.Results from HSPICE simulation show that the PSRR is -72.76 dB in the condition of low-frequency,the temperature coefficient is 2.4×10-6 in the temperature range from-10 ℃ to 90℃ and the power dissipation is only 14 μW when the supply voltage is 1.8 V.关键词
microsensor/band-gap voltage reference/temperature coefficient/PSRRKey words
microsensor/band-gap voltage reference/temperature coefficient/PSRR分类
信息技术与安全科学引用本文复制引用
CAO Yi-jiang,XIAO Fei,ZHANG Er-dong..A band-gap voltage reference for interface circuit of microsensor[J].哈尔滨工业大学学报（英文版）,2010,17(4):497-500,4.
