一种0.9V无运放高精度CMOS电压基准源
0.9V High Precision CMOS Voltage Reference Without Operational Amplifier
设计了一种无运放低压高精度CMOS电压基准源。基于工作在亚阈值区的MOSFETs，和基于对与绝对温度成正比（PTAT）的电流的补偿，该电流跟随于PNP晶体管的基极-发射极的电压。该电路有高的电源抑制比和低功耗，工作电源电压低至0.9V。电压基准源电路使用TSMC 0.18μm工艺在HSPICE软件仿真。供电电压在0.9V至3V变化时，输出的基准电压的变化偏差仅为1mV/V，温度变化范围为-10 C至110 C时，温度系数为18PPM / C。在室温下，当供电电压为1V时，电路的核心部分的功耗为15.5uW左右。
low power high precision CMOS voltage reference without operational amplifier is designed. It is based on sub-threshold MOSFETs and on compensating a proportional to absolute temperature (PTAT) based current, which varies with the emitter-base voltage of a PNP transistor. It has high power supply rejection ratio (PSRR) and a low power consumption, achieving a minimum supply voltage of 0.9 V. The voltage reference circuit was simulated by the tool of HSPICE with TSMC 0.18um technology. The variation of the output reference voltage is 1mV/V for supply voltage from 0.9V to 3V. The temperature coefficient is 18ppm/ C with the supply voltage range from 0.9V to 3V and the temperature range from -10 C to 110 C. The core circuit consumes 15.5uW at room temperature at 1V.
马晓玉、陈孙文、汪倩
微电子学、集成电路电子电路
无运放电压基准源亚阈值区温度系数
Without Operational Amplifiervoltage referencesubthresholdtemperature coefficient
马晓玉,陈孙文,汪倩.一种0.9V无运放高精度CMOS电压基准源[EB/OL].(2013-09-23)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201309-325.点此复制
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