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中文摘要：
介绍了一种新型的可修调低功耗基准电压源。为适应低功耗集成电路应用，该设计采用共源共栅结构代替传统的放大器结构，使基准电压源的功耗大大降低；为克服由模拟集成电路设计工艺波动而导致的电阻值不精确的问题，该设计引入了电阻修调电路，使该基准电压源在各个工艺角下都能有很好的基准电压输出。同时，隔离式的电阻修调改善了传统的直接熔丝修调带来的噪声影响。在SMIC0．18μm3．3V标准CMOS工艺下应用spectre仿真，结果表明，温度变化范围为-40℃～100℃时，温度变化1℃，电压变化量为十万分之一，室温下的参考电压输出为1．22V，3．3V电源电压下的功耗约为3．6μW。该基准电压结构适用于低功耗集成电路设计。
英文摘要：
A novel low power low temperature-coefficient bandgap voltage reference is presented in this paper. The main advantage of the proposed design is that, without an opamp, the main current consumption of the circuit is that for generating the reference voltage. As a result, the proposed bandgap reference can achieve low power comsumption. A resistor trimming circuit is introduced to overcome the variation of the resistance caused by the floating analog integrated circuit design process, so that the reference voltage at each process corner can achieve a good voltage output. Meanwhile, the isolated resistor trimming improves the noise effects caused by the traditional direct fuse trimming. Finally the simulation results based on 0. 18μm CMOS process indicate that the temperature changes 1 ~C, the voltage variation is one over one hundred thousand during the full temperature range （ -40℃ ～ 100℃ ）. The bandgap circuit outputs 1.22V in the typical operation condi- tion. And the power is only 3.6 μW. The proposed voltage reference structure can be applied to the design of low-power ICs.
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