Design a high precision and high output impedance current mirror in ۰.۱۸um-CMOS
محل انتشار: دومین کنفرانس مکانیک، برق و علوم مهندسی
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 285
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شناسه ملی سند علمی:
MEECONF02_027
تاریخ نمایه سازی: 20 شهریور 1400
چکیده مقاله:
In many biomedical applications operating at low voltage require very high output impedance current mirror. In this paper, “A very high impedance current mirror, with less number of transistors which can operate at low voltage without any additional biasing circuitry” is proposed. The proposed current mirror uses MOS current dividers to sample the output current to achieve very high impedance with a large output and voltage range. This implementation yields an increase in the output impedance by a factor of about gmrout compared with that of the super-Wilson current mirror, thus offering a potential solution to mitigate the effect of the low output impedance of deep submicron CMOS transistors used in low voltage current mirrors and current sources. The output of the proposed circuit is plotted in ۳ input streams and compared with several previous structures. Simulation with Hspice software and ۱۸۰ nm cmos technology.
کلیدواژه ها:
نویسندگان
Javad Pirhadi Toondasht Sofla
M.Sc. degrees in electrical engineering from Shahrood University of Technology
Afifeh Ghaemnia
PHD student from Shahed University
Ali Soleymani Ivari
Professor of digital electronics from Shahrood University of Technology