随着数字电路和计算技术在控制系统中日益广泛的应用,模-数转换正起着愈来愈重要的作用,而电压比较器则是模-数转换系统中的一个核心部分,它对高速取样脉冲的响应时间和对电压幅度的分辨本领在很大程度上决定了模-数转换系统的质量。一个钟频为lMC的十位精度转换器,采用二次并行比较,每次用于比较的时问仅有300ns左右,比较器必须在这个时间内完成对电压幅度的判别,因此,研究电压比较器对快速脉冲的响应以及对于前级电路的要求是十分重要的。 As digital circuits and computational techniques are increasingly used in control systems, analog-to-digital conversion is playing an increasingly important role, and voltage comparators are a core part of analog-digital conversion systems, The sampling pulse response time and resolution of the voltage amplitude largely determines the quality of the ADC system. A clock frequency of lMC 10-bit precision converter, using the second parallel comparison, each time for comparison is only about 300ns, the comparator must be completed within this time the voltage amplitude of discrimination, therefore, the study of voltage comparison The response of the fast pulse to the pulse and the requirements of the preceding circuit are very important.