Adjustable hysteresis CMOS Schmitt triggers

Adjustable hysteresis CMOS Schmitt triggers
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DOI：
10.1109/iscas.2008.4541823
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发表时间：
2008-05
期刊：
2008 IEEE International Symposium on Circuits and Systems
影响因子：
--
通讯作者：
V. Katyal;R. Geiger;Degang Chen
V. Katyal;R. Geiger;Degang Chen
中科院分区：
其他
文献类型：
--
作者：
V. Katyal;R. Geiger;Degang Chen

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研究了可调滞环CMOS施密特触发器的设计策略，提出了两种新的基于反相器的设计方案。两个反馈逆变器的大小独立地控制结构的两个跳变点。通过添加电压控制的电流吸收和/或源晶体管，可以容易地移动滞后窗口而不改变其宽度。此外，新设计不受来自后续块的反冲噪声的影响。
Adjustable hysteresis CMOS Schmitt trigger design strategies are investigated and two new inverter based designs are proposed. The sizing of the two feedback inverters controls the two trip points of the structure independently. By the addition of voltage controlled current sinking and/or sourcing transistors, the hysteresis window can be easily moved without changing its width. Moreover the new designs are immune to the kick-back noise coming from the succeeding blocks.