一种新型电阻补偿双极工艺带隙基准电压源

发布时间：2018-02-04 18:25

  本文关键词： 电阻补偿 带隙基准源 双极工艺 温度系数 线性调制率 电源抑制比　出处：《合肥工业大学学报(自然科学版)》2017年05期 　论文类型：期刊论文

【摘要】：文章分析了带隙基准电压源中电阻补偿的原理,使用2种不同温度系数的电阻设计了一个低温度系数新型双极工艺带隙电压源电路,并基于CSMC 2μm36V双极工艺对电路进行仿真,实现了对基极发射极电压的三阶补偿。仿真结果表明,在10~30V输入电压范围内,该带隙电压源输出电压为2.12V;电源抑制比为120.2dB的频率点为14.85Hz;温度变化范围在-40~125℃时,温度系数为2.17×10~(-6)/℃。
[Abstract]:In this paper, the principle of resistance compensation in bandgap voltage reference is analyzed, and a new type of band-gap voltage source circuit with low temperature coefficient is designed by using two kinds of resistors with different temperature coefficients. The circuit is simulated based on CSMC 2 渭 m 36V bipolar process, and the third-order compensation of the base emitter voltage is realized. The simulation results show that the input voltage is in the range of 10V / 30V. The output voltage of the bandgap voltage source is 2.12V; The power rejection ratio is 120.2dB and the frequency point is 14.85hz. When the temperature varies from -40 鈩，

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