首页 | 本学科首页   官方微博 | 高级检索  
     

一种新型的CMOS亚阈值低功耗基准电压源
引用本文:孙宇,肖立伊. 一种新型的CMOS亚阈值低功耗基准电压源[J]. 微电子学与计算机, 2012, 29(6): 51-56,60
作者姓名:孙宇  肖立伊
作者单位:哈尔滨工业大学微电子学与固体电子学中心,黑龙江哈尔滨,150001
摘    要:利用工作于亚阈值的NMOS器件,产生两个负温度系数的电压源,然后将两个电压源作差,产生稳定的基准电压输出.整体电路采用HJTCl80 nrn标准CM()S工艺实现.仿真结果表明,基准源输出电压为220 mV,在一25℃到100℃的温度范围内的温度系数为68×10-6/ C.电路的最小供电电压可低至O.7 V,在供电电压O.7~4V范围内的线性调整率为1.5 mV/V.无滤波电容时,1 kHz的电源抑制比为-56 dB室温下,1.O V电压供电时,电路总体功耗为3.7μW.版图设计后的芯片核心面积为O.02 mm2.本文设计的电压源适用于低电压低功耗的条件.

关 键 词:CMOS  亚阈值  低电压  低功耗  基准电压源

A Novel Low-power Low-voltage Reference
SUN Yu,XIAO Li-yi. A Novel Low-power Low-voltage Reference[J]. Microelectronics & Computer, 2012, 29(6): 51-56,60
Authors:SUN Yu  XIAO Li-yi
Affiliation:(Microelectronic Center,Harbin Institute of Technology,Harbin 150001,China)
Abstract:A novel low-power low-voltage reference is developed utilizing△VGS between sub threshold MOSFETs.It is implemented in HJTC 180 nm standard CMOS process.The proposed voltage reference generates two different VGSs which have negative temperature coefficients and combines them to produce an output voltage with a nearly zero temperature coefficient.The resulting reference voltage is 220 mV with the temperature coefficient 68×10-6/℃in the range of—25 C to 100 C The minimum supply voltage is 0.7 V and the simulated line regularity is 1.5 mV/ V with the supply range from 0.7~4 V.The PSRR is—56dB at 1 kHz and the power consumption is 3.7μW under 1.0 V at 300 K.The entire chip core area with the start up circuit is 0.02 mm2.This voltage reference is suitable for the low-power low-voltage applications.
Keywords:CMOS  subthreshold  low voltage  low power  voltage reference
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号