A 0.6-V 2-nA CMOS Current Reference Circuit
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 2
Abstract
This paper proposes a 0.6-V current reference circuit for use in ultra-low-power applications. In a conventional resistorlessbeta-multiplier current reference circuit, a MOSFET that operates in the strong inversion and triode regions is used as a resistor. Our proposed circuit provides a forward body-biasing for the MOSFET to lower its threshold voltage and make it operate in its strong inversion region even at a very low supply voltage of 0.6 V.We ran simulations using BSIM3v3 SPICE parameters for a 0.18-m standard CMOS process. At a supply voltage of 0.6V, the reference current was 2nA. The chip area of the proposed current reference circuit was 0.022 mm2 .
Authors and Affiliations
Zhigang Qin, Hirokazu Yoshizawa
Keywords
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- EP ID EP390219
- DOI 10.9790/9622- 0702051922.
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