一种nA级低功耗、高PSR的基准电压电路

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关键词：基准电压电路；超低静态功耗；亚阈值区；高电源抑制能力

中图分类号： TN432

文献标识码：A

DOI：10.14106/j.cnki.1001-2028.2025.1389

引用格式：李新，高诗雨，杨森林.一种nA级低功耗、高PSR的基准电压电路 [J]. 电子元件与材料， 2025， 44（2）： 215-222.

Reference format： LI Xin， GAO Shiyu， YANG Senlin. A nanoampere reference voltage circuit with low power consumption and high PSR[J]. Electronic Components and Materials， 2025， 44（2）： 215-222.

A nanoampere reference voltage circuit with low power consumption

and high PSR

LI Xin 1，GAO Shiyu 1， YANG Senlin 2

（1.School of Information Science and Engineering，Shenyang University of Technology，Shenyang 110870，China；

2. Shenzhixin Microelectronics Co.， Ltd.，Shanghai 201203，China）

Abstract： A reference voltage circuit with ultra-low quiescent power was designed for low-power DC-DC converters to address the issues of high power consumption and low power supply rejection （PSR） in traditional reference voltage circuits. The traditional reference voltage structure was optimized with no operational amplifier circuit. The power consumption of the reference voltage circuit was reduced to the nA level by utilizing enhanced-mode MOSFETs and depletion-mode MOSFETs operating in the sub-threshold region. By using a feedback network in the circuit， the PSR was significantly enhanced. Simulations were conducted using Cadence Spectre based on the Eastern Hi-Tech 0.18 μm BCD process. Simulation results show that when operated at a supply voltage of 5 V from -40 ℃ to 150 ℃， the reference voltage circuit can maintain an output voltage of 1.1 V with temperature coefficient of 9.36 ×10 -6℃ -1. At low frequency， the PSR is approximately -79.5 dB， and the static current is as low as 285.7 nA.

Keywords： voltage reference circuits; ultra-low quiescent power consumption; sub-threshold area; high power supply rejection

随着物联网微型设备的发展，基准电压源电路作为集成电路中的基础模块，经常应用在数模转换器、DC-DC电源转换器和低压差线性稳压源等模拟和混合信号集成电路中，为整个电路提供参考电压 [1]。（剩余6894字）