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A sub-1 V high-precision CMOS bandgap voltage reference

机译:低于1 V的高精度CMOS带隙基准电压源

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摘要

A third-order, sub-1 V bandgap voltage reference design for low-power supply, high-precision applicationsis presented. This design uses a current-mode compensation technique and temperature-dependent resistorratio to obtain high-order curvature compensation. The circuit was designed and fabricated by SMIC 0.18 μmCMOS technology. It produces an output reference of 713.6 mV. The temperature coefficient is 3.235 ppm/℃ inthe temperature range of –40 to 120 ℃, with a line regulation of 0.199 mV/V when the supply voltage varies from0.95 to 3 V. The average current consumption of the whole circuit is 49 μA at the supply voltage of 1 V.
机译:提出了一种适用于低电源,高精度应用的三阶,低于1 V的带隙电压参考设计。该设计使用电流模式补偿技术和与温度有关的电阻比来获得高阶曲率补偿。该电路是通过SMIC 0.18μmCMOS技术设计和制造的。产生的输出基准为713.6 mV。在–40至120℃的温度范围内,温度系数为3.235 ppm /℃,当电源电压在0.95至3 V之间变化时,线路调节为0.199 mV / V。整个电路的平均电流消耗为49μA在1 V的电源电压下

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