摘要
基于TSMC0.18μm标准CMOS标准工艺,提出了一种低温度系数,宽温度范围的带隙基准电压电路,该电路具有高电源抑制比,启动快及宽电源电压工作区域的优点,由于具备输出缓冲,可提供较低的输出阻抗及较高的电流负载能力。电路在-40℃到+110℃的温度变化范围内,基准电压为2.3020V±0.0015V,温度系数仅为7.25×10^-6/℃(-40℃到+110℃时),PSRR为64dB(11kHz处),电源电压变化范围为1.6-4.3V,输出噪声为5.018μV/√Hz(1kHz处)。
A high performance bandgap voltage reference is proposed, with low temperature coefficient, wide operation temperature range and an output buffer. The prototype is implemented in TSMC 0. 18 μm standard CMOS technology. The simulation results for this circuit show that the average temperature coefficient is about 7.25×10^-6/℃ and the output reference voltage is 2. 302 0 V±0. 001 5 V over the -40℃ to +110℃temperature range. The PSRR of this circuit is 64 dB at 11 kHz, and the power supply varies from 1.6 V to 4. 3 V. The output noise is 5. 018 at 1 kHz.
出处
《电子器件》
CAS
2008年第3期820-823,共4页
Chinese Journal of Electron Devices
基金
上海市科委资助(06SA14)
江苏省专用集成电路设计重点实验室项目资助(JSICK0601)