A Compact Untrimmed 48ppm/°C All MOS Current Reference Circuit
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A4 Artikkeli konferenssijulkaisussa
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Authors
Date
2022
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Mcode
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Language
en
Pages
5
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MWSCAS 2022 - 65th IEEE International Midwest Symposium on Circuits and Systems, Proceedings, Conference proceedings : Midwest Symposium on Circuits and Systems
Abstract
An ultra-low power and low-cost (area efficient) nano-Ampere current reference circuit designed in a 65 nm technology is presented in this paper: The proposed circuit is a resistorless beta multiplier current reference circuit that uses self cascode composite MOSFETs in triode region. Circuit analysis has been discussed in the paper. The simulated circuit consumes power of 550 nW at a nominal operating voltage of 1.33 V and occupies area of 0.0031 mm2. The design provides a line regulation of 1.9 %/V over an operating voltage range of 1.25 V to 1.4 V. Temperature coefficient (TC) of the circuit at nominal voltage of 1.33 V is 48 ppm/°C for a wide temperature range of-40°C to 85°C. Output current of the circuit at nominal voltage is 104.2 nA with a small process variation of only 4 %.Description
Funding Information: The authors are grateful to Academy of Finland for funding this work under the project EHIR (Wireless impulse radio data link powered by energy harvesting). Publisher Copyright: © 2022 IEEE.
Keywords
CMOS beta multiplier, Current reference, low temperature coefficient, low-power, self-cascode transistor
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Citation
Monga, D C & Halonen, K 2022, A Compact Untrimmed 48ppm/°C All MOS Current Reference Circuit . in MWSCAS 2022 - 65th IEEE International Midwest Symposium on Circuits and Systems, Proceedings . Conference proceedings : Midwest Symposium on Circuits and Systems, IEEE, International Midwest Symposium on Circuits and Systems, Fukuoka, Japan, 07/08/2022 . https://doi.org/10.1109/MWSCAS54063.2022.9859347