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本文提出了一种带隙基准电压源 ,它能产生低于 1V的精确基准电压 .该电路有较高性能的启动电路使电路在上电时能进入正确的状态 .在 0 2 5 μmCMOS工艺条件下 ,电路的各项性能指标采用HSPICE进行模拟验证 .模拟结果表明该电路在 2 2V～ 3 3V的电源电压变化范围内、在- 1 0～ 80℃温度变化范围内 ,输出电压的变化不超过 1 1mV .
This paper presents a bandgap voltage reference capable of generating accurate reference voltages below 1 V. This circuit has a higher performance startup circuit that allows the circuit to enter the correct state at power-up. With a 0 2 5 μm CMOS process , The performance of the circuit is simulated by HSPICE.The simulation results show that the output voltage does not change within the range of -1 0 ~ 80 ℃ within the range of power supply voltage of 2 2V ~ 3 3V 1 1mV.