摘要
设计了一种比较器延迟补偿的张弛振荡器,通过将张弛振荡器中电容充电时的峰值电压箝位至所设置的基准电压,以补偿比较器延迟的影响。采用SMIC 0.18μm工艺完成电路和版图设计,后仿真结果表明,振荡器输出频率为640 kHz,在-40~125℃温度范围内,温度变化率为±0.27%,在2.5~3.3 V的电压范围内,电源敏感度为±0.48%/V。
A comparator delay-compensated relaxation oscillator was designed by clamping the peak voltage during the capacitor charging phase to a set reference voltage to mitigate the effects of comparator delay.The circuit and layout were implemented using the SMIC 0.18μm process.Post-simulation results showed an oscillator output frequency of 640 kHz,with a temperature variation rate of±0.27%across a temperature range of-40 to 125°C and power supply sensitivity of±0.48%/V within a voltage range of 2.5–3.3 V.
作者
任世佳
王洛尧
骆妙艺
王煜文
毛升贵
王锋
REN Shijia;WANG Luoyao;LUO Miaoyi;WANG Yuwen;Mao Shenggui;WANG Feng(College of Advanced Manufacturing,Fuzhou University,Jinjiang Fujian 362251,P.R.China;Liming Vocational University,Quanzhou Fujian 362000,P.R.China)
出处
《微电子学》
北大核心
2025年第4期543-548,共6页
Microelectronics
基金
福建省重大专项专题项目(2022HZ027006)。
关键词
张弛振荡器
比较器延迟补偿
峰值电压箝位
relaxation oscillator
comparator delay compensation
peak voltage clamping
