一种新型栅压自举开关的设计  

Design of a New Boost and Bootstrap Switch

作　　者：卞腾飞 莫冰[1] 高城 高磊 傅文渊[1] 

机构地区：[1]华侨大学信息科学与工程学院,厦门361021

出　　处：《现代计算机》2018年第1期69-72,共4页Modern Computer

基　　金：福建省自然科学基金面上项目(No.2015J01263);福建省中青年教师教育科研项目(No.JA15037)

摘　　要：设计一种新型自举开关(Boost Bootstrap)电路结构,应用于SAR ADC的采样保持电路中,从而实现over-rail inputrange。此结构改进了之前同种电路输入电压不能高于2*VDD的不足。采用SMIC 55nm低压工艺,电源电压0.6V,在Cadence Spectre环境下进行电路仿真。结果表明:该电路在采样期间基本保持输出电压比输入信号大1.15V,满足SAR ADC中采样保持电路的应用需求。Designs a new type of boost bootstrap circuit architecture, which can be applied in SARADC Sample and Hold Circuit, to make up for the previous deficiency that the input vin should not be over 2＊VDD in the same circuit. Uses SMIC 55nm Low Voltage technology, 0.6 supply voltage to conduct cireuit simulation under Cadence Spectre. It turns out that this circuit can basically maintain that the input vin is 1.15V higher than the input signal and meet the need of Sample and Hold Circuit application in SAR ADC.

关 键 词：栅压自举开关 CADENCE Spectre SAR ADC 采样保持 低压工艺 

分 类 号：TN792[电子电信—电路与系统]