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http://dx.doi.org/10.5573/ieie.2015.52.2.106

Robust Start-up Circuit for Low Supply-voltage Reference Generator  

Im, Saemin (Dep. of Electronic and Computer Engineering, Hanyang University)
Park, Sang-Gyu (Dep. of Electronic and Computer Engineering, Hanyang University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.52, no.2, 2015 , pp. 106-111 More about this Journal
Abstract
Since most reference voltage generator circuits have bi-stable characteristics, it is important to employ a proper start-up circuit to operate a reference generator in the desired state. In this paper, we propose a start-up circuit for a low voltage reference generator. This start-up circuit determines the state of the circuit reliably by measuring the current drawn by BJTs in the circuit, which is well-defined in the desired state. To measure the current using CMOS-compatible devices only, a comparator with an internal offset voltage is used. The reliability of the proposed circuit is confirmed by Monte-Carlo simulations of the start-up operation, which show that, with the proposed start-up circuit, the low voltage reference generator starts reliably with supply voltages over 850mV even in the presence of device mismatches.
Keywords
Bandgap reference; reference voltage generator; start-up circuit; comparator;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Won Kyeong Park, Su Jin Lee, Yong Su Park, and Han Jung Song, "Design of a Low Drop-out Regulator with a UVLO Protection Function", IEEK, vol. 50, no. 10, pp. 2691-2696, October 2013.   과학기술학회마을   DOI   ScienceOn
2 Jin-Woo Kim and Shin-Il Lim, "A Design of High PSRR LDO over Wide Frequency Range without External Capacitor", IEEK, vol. 50, no. 12, pp. 3001-3008, December 2013.
3 Kujik, "A Precision reference voltage source", IEEE J. Solid State Circuits, vol. 8, no. 3, pp. 222-226, June 1973.   DOI   ScienceOn
4 Da-In Han, Hyeong-Soon Kim, Yeong-Seuk Kim, "Design of A 0.5V CMOS Bandgap Voltage Reference:" IEEK Fall Conference, 2012.
5 Yoon-Jae Shin, Jun-Youn Lim, Kae-Dal Kwack, "A CMOS Bandgap Reference Voltage Generator Circuit with Sub-1.1-V Operation", IEEK CEIC, 20144.
6 Banba, H., Shiga, H., Umezawa, A., Miyaba, T., Tanzawa, T., Atsumi, S., and Sakui, K.: "A CMOS bandgap reference circuit with sub-1-V operation", IEEE J. Solid State Circuits, 1999, vol. 34, no. 5, pp. 670-674, May 1999.   DOI   ScienceOn
7 Ka Nang Leung, Philip K. T. Mok, "A Sub-1-V 15-ppm/ C CMOS Bandgap Voltage Reference Without Requiring Low Threshold Voltage Device", IEEE J. Solid State Circuits, vol. 37, no. 4, pp. 526-530, April 2002.   DOI   ScienceOn
8 Lee, S., Lee, H., Woo, J.-K., Kim, S. "Low-voltage bandgap reference with output-regulated current mirror in 90 nm CMOS", IET Electron. Lett., vol. 46, no. 14, pp. 976-977, July 2010.   DOI   ScienceOn
9 Malcovati, P., Maloberti, F., Fiocchi, C., and Pruzzi, M. "Curvature-compensated BiCMOS bandgap with 1-V supply voltage", IEEE J. Solid State Circuits, vol. 36, no. 7, pp. 1076-1081, July 2001.   DOI   ScienceOn
10 Boni, A. "Op-amps and startup circuits for CMOS bandgap references with near 1-V supply", IEEE J. Solid State Circuits, vol. 37, no. 10, pp. 1339-1343, Oct. 2002.   DOI   ScienceOn
11 Dehghani, R., Atarodi, S. M., "A new low voltage precision CMOS current reference with no external components", IEEE Tran. Circuits and Systems-II, vol. 50, no. 12, pp. 928-932, Dec. 2003.   DOI
12 Behzad Razavi, "Design of Analog CMOS Integrated Circuits", McGraw-Hill, 2001.
13 Annema, A.J. 'A $0.0025mm^2$ bandgap voltage reference for 1.1 V supply in standard 0.16 ${\mu}m$ CMOS'. IEEE Int. Solid-State Circuits Conf. (ISSCC), San Francisco, USA, 19-23 February 2012, pp. 364-366
14 D.F. Bowers, E.J. Modica, "Curvature-corrected low-noise sub-bandgap reference in 28 nm CMOS technology", IET Electronics letter, Vol. 50, No. 5, pp. 396-398, Feb. 2014.   DOI   ScienceOn