中文摘要：

设计了一种结构特殊的迟滞比较器，电路为单端输入，翻转电压以及迟滞电压均由电路内部产生，通过对电路内部的参数调节即可改变翻转电压和迟滞电压的具体值．电路自身具有一个结构简单的电流源产生电路，不需要从外界获取偏置电压、仅由电源供电，因此有很强的独立性．通过0．6μmCMOS工艺来实现，HSpice仿真结果表明：在3V的工作电压下翻转电平可设置在100～240mV之间，迟滞电压能精确到5mV，瞬态响应时间小于1μs．

英文摘要：

A hysteresis eomparator with a special structure was designed, in which the threshold voltage was generated by the circuit itself but not from an input channel as usual and there was also a positive feedback branch in this circuit to create a lagging voltage. Both the threshold and the hysteresis voltage were modified by adjusting the breadth length ratio of special MOSFETs. The circuit was provided with a current source in need of equipping external current supply. Simulation results showed that when VDD was 3 V, a practical circuit operating on 0.6μm CMOS process achieved the threshold voltage from 100 mV to 240 mV, and the hysteresis voltage could be precisely 5mV and the transient response of the circuit is in 1μs.